[FIR] CFG: drop redundant edges

Edges from class to its functions and nested classes are redundant
and lead to extra resolution work in lazy resolve mode

^KT-59600 Fixed

compiler/fir/analysis-tests/testData/resolve/smartcasts/bangbang.dot

@@ -8,14 +8,13 @@ digraph bangbang_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/booleans/booleanOperators.dot

@@ -8,20 +8,20 @@ digraph booleanOperators_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
-    subgraph cluster_1 {
-        color=blue
-        2 [label="Enter function bool" style="filled" fillcolor=red];
-        3 [label="Exit function bool" style="filled" fillcolor=red];
-    }
-    subgraph cluster_2 {
-        color=blue
-        4 [label="Enter function foo" style="filled" fillcolor=red];
-        5 [label="Exit function foo" style="filled" fillcolor=red];
-    }
     0 -> {1} [color=green];
-    1 -> {2 4} [color=green];
-    1 -> {2 4} [style=dashed];
+
+    subgraph cluster_1 {
+        color=red
+        2 [label="Enter function foo" style="filled" fillcolor=red];
+        3 [label="Exit function foo" style="filled" fillcolor=red];
+    }
     2 -> {3};
+
+    subgraph cluster_2 {
+        color=red
+        4 [label="Enter function bool" style="filled" fillcolor=red];
+        5 [label="Exit function bool" style="filled" fillcolor=red];
+    }
     4 -> {5};
 
     subgraph cluster_3 {
@@ -29,14 +29,13 @@ digraph booleanOperators_kt {
         6 [label="Enter class B" style="filled" fillcolor=red];
         7 [label="Exit class B" style="filled" fillcolor=red];
     }
+    6 -> {7} [color=green];
+
     subgraph cluster_4 {
-        color=blue
+        color=red
         8 [label="Enter function bar" style="filled" fillcolor=red];
         9 [label="Exit function bar" style="filled" fillcolor=red];
     }
-    6 -> {7} [color=green];
-    7 -> {8} [color=green];
-    7 -> {8} [style=dashed];
     8 -> {9};
 
     subgraph cluster_5 {
@@ -44,14 +43,13 @@ digraph booleanOperators_kt {
         10 [label="Enter class C" style="filled" fillcolor=red];
         11 [label="Exit class C" style="filled" fillcolor=red];
     }
+    10 -> {11} [color=green];
+
     subgraph cluster_6 {
-        color=blue
+        color=red
         12 [label="Enter function baz" style="filled" fillcolor=red];
         13 [label="Exit function baz" style="filled" fillcolor=red];
     }
-    10 -> {11} [color=green];
-    11 -> {12} [color=green];
-    11 -> {12} [style=dashed];
     12 -> {13};
 
     subgraph cluster_7 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/booleans/equalsToBoolean.dot

@@ -8,14 +8,13 @@ digraph equalsToBoolean_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/booleans/jumpFromRhsOfOperator.dot

@@ -8,14 +8,13 @@ digraph jumpFromRhsOfOperator_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/boundSmartcasts/boundSmartcasts.dot

@@ -8,14 +8,13 @@ digraph boundSmartcasts_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {
@@ -23,14 +22,13 @@ digraph boundSmartcasts_kt {
         4 [label="Enter class B" style="filled" fillcolor=red];
         5 [label="Exit class B" style="filled" fillcolor=red];
     }
+    4 -> {5} [color=green];
+
     subgraph cluster_3 {
-        color=blue
+        color=red
         6 [label="Enter function bar" style="filled" fillcolor=red];
         7 [label="Exit function bar" style="filled" fillcolor=red];
     }
-    4 -> {5} [color=green];
-    5 -> {6} [color=green];
-    5 -> {6} [style=dashed];
     6 -> {7};
 
     subgraph cluster_4 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/controlStructures/elvis.dot

@@ -8,14 +8,13 @@ digraph elvis_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/controlStructures/returns.dot

@@ -157,14 +157,13 @@ digraph returns_kt {
         53 [label="Enter class A" style="filled" fillcolor=red];
         54 [label="Exit class A" style="filled" fillcolor=red];
     }
+    53 -> {54} [color=green];
+
     subgraph cluster_15 {
-        color=blue
+        color=red
         55 [label="Enter function foo" style="filled" fillcolor=red];
         56 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    53 -> {54} [color=green];
-    54 -> {55} [color=green];
-    54 -> {55} [style=dashed];
     55 -> {56};
 
     subgraph cluster_16 {
@@ -172,14 +171,13 @@ digraph returns_kt {
         57 [label="Enter class B" style="filled" fillcolor=red];
         58 [label="Exit class B" style="filled" fillcolor=red];
     }
+    57 -> {58} [color=green];
+
     subgraph cluster_17 {
-        color=blue
+        color=red
         59 [label="Enter function bar" style="filled" fillcolor=red];
         60 [label="Exit function bar" style="filled" fillcolor=red];
     }
-    57 -> {58} [color=green];
-    58 -> {59} [color=green];
-    58 -> {59} [style=dashed];
     59 -> {60};
 
     subgraph cluster_18 {
@@ -187,14 +185,13 @@ digraph returns_kt {
         61 [label="Enter class C" style="filled" fillcolor=red];
         62 [label="Exit class C" style="filled" fillcolor=red];
     }
+    61 -> {62} [color=green];
+
     subgraph cluster_19 {
-        color=blue
+        color=red
         63 [label="Enter function baz" style="filled" fillcolor=red];
         64 [label="Exit function baz" style="filled" fillcolor=red];
     }
-    61 -> {62} [color=green];
-    62 -> {63} [color=green];
-    62 -> {63} [style=dashed];
     63 -> {64};
 
     subgraph cluster_20 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/controlStructures/smartcastFromArgument.dot

@@ -8,14 +8,13 @@ digraph smartcastFromArgument_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/controlStructures/when.dot

@@ -8,14 +8,13 @@ digraph when_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {
@@ -23,14 +22,13 @@ digraph when_kt {
         4 [label="Enter class B" style="filled" fillcolor=red];
         5 [label="Exit class B" style="filled" fillcolor=red];
     }
+    4 -> {5} [color=green];
+
     subgraph cluster_3 {
-        color=blue
+        color=red
         6 [label="Enter function bar" style="filled" fillcolor=red];
         7 [label="Exit function bar" style="filled" fillcolor=red];
     }
-    4 -> {5} [color=green];
-    5 -> {6} [color=green];
-    5 -> {6} [style=dashed];
     6 -> {7};
 
     subgraph cluster_4 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/equalsAndIdentity.dot

@@ -8,14 +8,13 @@ digraph equalsAndIdentity_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/lambdas/inPlaceLambdas.dot

@@ -8,14 +8,13 @@ digraph inPlaceLambdas_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {
@@ -23,14 +22,13 @@ digraph inPlaceLambdas_kt {
         4 [label="Enter class B" style="filled" fillcolor=red];
         5 [label="Exit class B" style="filled" fillcolor=red];
     }
+    4 -> {5} [color=green];
+
     subgraph cluster_3 {
-        color=blue
+        color=red
         6 [label="Enter function bar" style="filled" fillcolor=red];
         7 [label="Exit function bar" style="filled" fillcolor=red];
     }
-    4 -> {5} [color=green];
-    5 -> {6} [color=green];
-    5 -> {6} [style=dashed];
     6 -> {7};
 
     subgraph cluster_4 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/lambdas/lambdaInWhenBranch.dot

@@ -38,24 +38,6 @@ digraph lambdaInWhenBranch_kt {
         }
         12 [label="Exit class SubClass1" style="filled" fillcolor=red];
     }
-    subgraph cluster_5 {
-        color=blue
-        13 [label="Enter function copy" style="filled" fillcolor=red];
-        14 [label="Enter default value of t"];
-        subgraph cluster_6 {
-            color=blue
-            15 [label="Enter default value of t" style="filled" fillcolor=red];
-            16 [label="Access variable R|/SubClass1.t|"];
-            17 [label="Exit default value of t" style="filled" fillcolor=red];
-        }
-        18 [label="Exit default value of t"];
-        19 [label="Exit function copy" style="filled" fillcolor=red];
-    }
-    subgraph cluster_7 {
-        color=blue
-        20 [label="Enter function component1" style="filled" fillcolor=red];
-        21 [label="Exit function component1" style="filled" fillcolor=red];
-    }
     5 -> {6} [color=green];
     5 -> {12} [style=dotted];
     5 -> {6 9} [style=dashed];
@@ -65,15 +47,33 @@ digraph lambdaInWhenBranch_kt {
     9 -> {10};
     10 -> {11};
     11 -> {12} [color=green];
-    12 -> {13 20} [color=green];
-    12 -> {13 20} [style=dashed];
+
+    subgraph cluster_5 {
+        color=red
+        13 [label="Enter function component1" style="filled" fillcolor=red];
+        14 [label="Exit function component1" style="filled" fillcolor=red];
+    }
     13 -> {14};
-    14 -> {15 18};
-    14 -> {15} [style=dashed];
+
+    subgraph cluster_6 {
+        color=red
+        15 [label="Enter function copy" style="filled" fillcolor=red];
+        16 [label="Enter default value of t"];
+        subgraph cluster_7 {
+            color=blue
+            17 [label="Enter default value of t" style="filled" fillcolor=red];
+            18 [label="Access variable R|/SubClass1.t|"];
+            19 [label="Exit default value of t" style="filled" fillcolor=red];
+        }
+        20 [label="Exit default value of t"];
+        21 [label="Exit function copy" style="filled" fillcolor=red];
+    }
     15 -> {16};
-    16 -> {17};
+    16 -> {17 20};
+    16 -> {17} [style=dashed];
     17 -> {18};
     18 -> {19};
+    19 -> {20};
     20 -> {21};
 
     subgraph cluster_8 {
@@ -87,19 +87,18 @@ digraph lambdaInWhenBranch_kt {
         }
         26 [label="Exit class SubClass2" style="filled" fillcolor=red];
     }
-    subgraph cluster_10 {
-        color=blue
-        27 [label="Enter function copy" style="filled" fillcolor=red];
-        28 [label="Exit function copy" style="filled" fillcolor=red];
-    }
     22 -> {23} [color=green];
     22 -> {26} [style=dotted];
     22 -> {23} [style=dashed];
     23 -> {24};
     24 -> {25};
     25 -> {26} [color=green];
-    26 -> {27} [color=green];
-    26 -> {27} [style=dashed];
+
+    subgraph cluster_10 {
+        color=red
+        27 [label="Enter function copy" style="filled" fillcolor=red];
+        28 [label="Exit function copy" style="filled" fillcolor=red];
+    }
     27 -> {28};
 
     subgraph cluster_11 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/loops/dataFlowInfoFromWhileCondition.dot

@@ -8,14 +8,13 @@ digraph dataFlowInfoFromWhileCondition_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/loops/endlessLoops.dot

@@ -8,14 +8,13 @@ digraph endlessLoops_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/multipleCasts.dot

@@ -8,14 +8,13 @@ digraph multipleCasts_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+
     subgraph cluster_1 {
-        color=blue
+        color=red
         2 [label="Enter function foo" style="filled" fillcolor=red];
         3 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    1 -> {2} [color=green];
-    1 -> {2} [style=dashed];
     2 -> {3};
 
     subgraph cluster_2 {
@@ -23,14 +22,13 @@ digraph multipleCasts_kt {
         4 [label="Enter class B" style="filled" fillcolor=red];
         5 [label="Exit class B" style="filled" fillcolor=red];
     }
+    4 -> {5} [color=green];
+
     subgraph cluster_3 {
-        color=blue
+        color=red
         6 [label="Enter function foo" style="filled" fillcolor=red];
         7 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    4 -> {5} [color=green];
-    5 -> {6} [color=green];
-    5 -> {6} [style=dashed];
     6 -> {7};
 
     subgraph cluster_4 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/nullability.dot

@@ -8,20 +8,20 @@ digraph nullability_kt {
         0 [label="Enter class A" style="filled" fillcolor=red];
         1 [label="Exit class A" style="filled" fillcolor=red];
     }
-    subgraph cluster_1 {
-        color=blue
-        2 [label="Enter function getA" style="filled" fillcolor=red];
-        3 [label="Exit function getA" style="filled" fillcolor=red];
-    }
-    subgraph cluster_2 {
-        color=blue
-        4 [label="Enter function foo" style="filled" fillcolor=red];
-        5 [label="Exit function foo" style="filled" fillcolor=red];
-    }
     0 -> {1} [color=green];
-    1 -> {2 4} [color=green];
-    1 -> {2 4} [style=dashed];
+
+    subgraph cluster_1 {
+        color=red
+        2 [label="Enter function foo" style="filled" fillcolor=red];
+        3 [label="Exit function foo" style="filled" fillcolor=red];
+    }
     2 -> {3};
+
+    subgraph cluster_2 {
+        color=red
+        4 [label="Enter function getA" style="filled" fillcolor=red];
+        5 [label="Exit function getA" style="filled" fillcolor=red];
+    }
     4 -> {5};
 
     subgraph cluster_3 {
@@ -29,14 +29,13 @@ digraph nullability_kt {
         6 [label="Enter class MyData" style="filled" fillcolor=red];
         7 [label="Exit class MyData" style="filled" fillcolor=red];
     }
+    6 -> {7} [color=green];
+
     subgraph cluster_4 {
-        color=blue
+        color=red
         8 [label="Enter function fs" style="filled" fillcolor=red];
         9 [label="Exit function fs" style="filled" fillcolor=red];
     }
-    6 -> {7} [color=green];
-    7 -> {8} [color=green];
-    7 -> {8} [style=dashed];
     8 -> {9};
 
     subgraph cluster_5 {
@@ -44,14 +43,13 @@ digraph nullability_kt {
         10 [label="Enter class Q" style="filled" fillcolor=red];
         11 [label="Exit class Q" style="filled" fillcolor=red];
     }
+    10 -> {11} [color=green];
+
     subgraph cluster_6 {
-        color=blue
+        color=red
         12 [label="Enter function fdata" style="filled" fillcolor=red];
         13 [label="Exit function fdata" style="filled" fillcolor=red];
     }
-    10 -> {11} [color=green];
-    11 -> {12} [color=green];
-    11 -> {12} [style=dashed];
     12 -> {13};
 
     subgraph cluster_7 {
@@ -71,8 +69,18 @@ digraph nullability_kt {
         }
         21 [label="Exit class QImpl" style="filled" fillcolor=red];
     }
+    14 -> {15} [color=green];
+    14 -> {21} [style=dotted];
+    14 -> {15 18} [style=dashed];
+    15 -> {16};
+    16 -> {17};
+    17 -> {18} [color=green];
+    18 -> {19};
+    19 -> {20};
+    20 -> {21} [color=green];
+
     subgraph cluster_10 {
-        color=blue
+        color=red
         22 [label="Enter function fdata" style="filled" fillcolor=red];
         subgraph cluster_11 {
             color=blue
@@ -84,17 +92,6 @@ digraph nullability_kt {
         }
         28 [label="Exit function fdata" style="filled" fillcolor=red];
     }
-    14 -> {15} [color=green];
-    14 -> {21} [style=dotted];
-    14 -> {15 18} [style=dashed];
-    15 -> {16};
-    16 -> {17};
-    17 -> {18} [color=green];
-    18 -> {19};
-    19 -> {20};
-    20 -> {21} [color=green];
-    21 -> {22} [color=green];
-    21 -> {22} [style=dashed];
     22 -> {23};
     23 -> {24};
     24 -> {25};
@@ -120,8 +117,18 @@ digraph nullability_kt {
         }
         36 [label="Exit class QImplMutable" style="filled" fillcolor=red];
     }
+    29 -> {30} [color=green];
+    29 -> {36} [style=dotted];
+    29 -> {30 33} [style=dashed];
+    30 -> {31};
+    31 -> {32};
+    32 -> {33} [color=green];
+    33 -> {34};
+    34 -> {35};
+    35 -> {36} [color=green];
+
     subgraph cluster_15 {
-        color=blue
+        color=red
         37 [label="Enter function fdata" style="filled" fillcolor=red];
         subgraph cluster_16 {
             color=blue
@@ -133,17 +140,6 @@ digraph nullability_kt {
         }
         43 [label="Exit function fdata" style="filled" fillcolor=red];
     }
-    29 -> {30} [color=green];
-    29 -> {36} [style=dotted];
-    29 -> {30 33} [style=dashed];
-    30 -> {31};
-    31 -> {32};
-    32 -> {33} [color=green];
-    33 -> {34};
-    34 -> {35};
-    35 -> {36} [color=green];
-    36 -> {37} [color=green];
-    36 -> {37} [style=dashed];
     37 -> {38};
     38 -> {39};
     39 -> {40};
@@ -163,40 +159,26 @@ digraph nullability_kt {
         }
         48 [label="Exit class QImplWithCustomGetter" style="filled" fillcolor=red];
     }
-    subgraph cluster_19 {
-        color=blue
-        49 [label="Enter function fdata" style="filled" fillcolor=red];
-        subgraph cluster_20 {
-            color=blue
-            50 [label="Enter block"];
-            51 [label="Const: Null(null)"];
-            52 [label="Jump: ^fdata Null(null)"];
-            53 [label="Stub" style="filled" fillcolor=gray];
-            54 [label="Exit block" style="filled" fillcolor=gray];
-        }
-        55 [label="Exit function fdata" style="filled" fillcolor=red];
-    }
-    subgraph cluster_21 {
-        color=blue
-        56 [label="Enter function <getter>" style="filled" fillcolor=red];
-        subgraph cluster_22 {
-            color=blue
-            57 [label="Enter block"];
-            58 [label="Const: Null(null)"];
-            59 [label="Jump: ^ Null(null)"];
-            60 [label="Stub" style="filled" fillcolor=gray];
-            61 [label="Exit block" style="filled" fillcolor=gray];
-        }
-        62 [label="Exit function <getter>" style="filled" fillcolor=red];
-    }
     44 -> {45} [color=green];
     44 -> {48} [style=dotted];
     44 -> {45} [style=dashed];
     45 -> {46};
     46 -> {47};
     47 -> {48} [color=green];
-    48 -> {49 56} [color=green];
-    48 -> {49 56} [style=dashed];
+
+    subgraph cluster_19 {
+        color=red
+        49 [label="Enter function <getter>" style="filled" fillcolor=red];
+        subgraph cluster_20 {
+            color=blue
+            50 [label="Enter block"];
+            51 [label="Const: Null(null)"];
+            52 [label="Jump: ^ Null(null)"];
+            53 [label="Stub" style="filled" fillcolor=gray];
+            54 [label="Exit block" style="filled" fillcolor=gray];
+        }
+        55 [label="Exit function <getter>" style="filled" fillcolor=red];
+    }
     49 -> {50};
     50 -> {51};
     51 -> {52};
@@ -204,6 +186,20 @@ digraph nullability_kt {
     52 -> {53} [style=dotted];
     53 -> {54} [style=dotted];
     54 -> {55} [style=dotted];
+
+    subgraph cluster_21 {
+        color=red
+        56 [label="Enter function fdata" style="filled" fillcolor=red];
+        subgraph cluster_22 {
+            color=blue
+            57 [label="Enter block"];
+            58 [label="Const: Null(null)"];
+            59 [label="Jump: ^fdata Null(null)"];
+            60 [label="Stub" style="filled" fillcolor=gray];
+            61 [label="Exit block" style="filled" fillcolor=gray];
+        }
+        62 [label="Exit function fdata" style="filled" fillcolor=red];
+    }
     56 -> {57};
     57 -> {58};
     58 -> {59};

compiler/fir/analysis-tests/testData/resolve/smartcasts/receivers/implicitReceivers.dot

@@ -14,8 +14,15 @@ digraph implicitReceivers_kt {
         }
         4 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+    0 -> {4} [style=dotted];
+    0 -> {1} [style=dashed];
+    1 -> {2};
+    2 -> {3};
+    3 -> {4} [color=green];
+
     subgraph cluster_2 {
-        color=blue
+        color=red
         5 [label="Enter function foo" style="filled" fillcolor=red];
         subgraph cluster_3 {
             color=blue
@@ -24,14 +31,6 @@ digraph implicitReceivers_kt {
         }
         8 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    0 -> {4} [style=dotted];
-    0 -> {1} [style=dashed];
-    1 -> {2};
-    2 -> {3};
-    3 -> {4} [color=green];
-    4 -> {5} [color=green];
-    4 -> {5} [style=dashed];
     5 -> {6};
     6 -> {7};
     7 -> {8};
@@ -47,8 +46,15 @@ digraph implicitReceivers_kt {
         }
         13 [label="Exit class B" style="filled" fillcolor=red];
     }
+    9 -> {10} [color=green];
+    9 -> {13} [style=dotted];
+    9 -> {10} [style=dashed];
+    10 -> {11};
+    11 -> {12};
+    12 -> {13} [color=green];
+
     subgraph cluster_6 {
-        color=blue
+        color=red
         14 [label="Enter function bar" style="filled" fillcolor=red];
         subgraph cluster_7 {
             color=blue
@@ -57,14 +63,6 @@ digraph implicitReceivers_kt {
         }
         17 [label="Exit function bar" style="filled" fillcolor=red];
     }
-    9 -> {10} [color=green];
-    9 -> {13} [style=dotted];
-    9 -> {10} [style=dashed];
-    10 -> {11};
-    11 -> {12};
-    12 -> {13} [color=green];
-    13 -> {14} [color=green];
-    13 -> {14} [style=dashed];
     14 -> {15};
     15 -> {16};
     16 -> {17};

compiler/fir/analysis-tests/testData/resolve/smartcasts/safeCalls/assignSafeCall.dot

@@ -20,29 +20,6 @@ digraph assignSafeCall_kt {
         }
         7 [label="Exit class A" style="filled" fillcolor=red];
     }
-    subgraph cluster_3 {
-        color=blue
-        8 [label="Enter function bar" style="filled" fillcolor=red];
-        subgraph cluster_4 {
-            color=blue
-            9 [label="Enter block"];
-            10 [label="Exit block"];
-        }
-        11 [label="Exit function bar" style="filled" fillcolor=red];
-    }
-    subgraph cluster_5 {
-        color=blue
-        12 [label="Enter function foo" style="filled" fillcolor=red];
-        subgraph cluster_6 {
-            color=blue
-            13 [label="Enter block"];
-            14 [label="Const: Int(1)"];
-            15 [label="Jump: ^foo Int(1)"];
-            16 [label="Stub" style="filled" fillcolor=gray];
-            17 [label="Exit block" style="filled" fillcolor=gray];
-        }
-        18 [label="Exit function foo" style="filled" fillcolor=red];
-    }
     0 -> {1} [color=green];
     0 -> {7} [style=dotted];
     0 -> {1 4} [style=dashed];
@@ -52,18 +29,41 @@ digraph assignSafeCall_kt {
     4 -> {5};
     5 -> {6};
     6 -> {7} [color=green];
-    7 -> {8 12} [color=green];
-    7 -> {8 12} [style=dashed];
+
+    subgraph cluster_3 {
+        color=red
+        8 [label="Enter function foo" style="filled" fillcolor=red];
+        subgraph cluster_4 {
+            color=blue
+            9 [label="Enter block"];
+            10 [label="Const: Int(1)"];
+            11 [label="Jump: ^foo Int(1)"];
+            12 [label="Stub" style="filled" fillcolor=gray];
+            13 [label="Exit block" style="filled" fillcolor=gray];
+        }
+        14 [label="Exit function foo" style="filled" fillcolor=red];
+    }
     8 -> {9};
     9 -> {10};
     10 -> {11};
-    12 -> {13};
-    13 -> {14};
-    14 -> {15};
-    15 -> {18};
-    15 -> {16} [style=dotted];
-    16 -> {17} [style=dotted];
-    17 -> {18} [style=dotted];
+    11 -> {14};
+    11 -> {12} [style=dotted];
+    12 -> {13} [style=dotted];
+    13 -> {14} [style=dotted];
+
+    subgraph cluster_5 {
+        color=red
+        15 [label="Enter function bar" style="filled" fillcolor=red];
+        subgraph cluster_6 {
+            color=blue
+            16 [label="Enter block"];
+            17 [label="Exit block"];
+        }
+        18 [label="Exit function bar" style="filled" fillcolor=red];
+    }
+    15 -> {16};
+    16 -> {17};
+    17 -> {18};
 
     subgraph cluster_7 {
         color=red
@@ -239,20 +239,20 @@ digraph assignSafeCall_kt {
         85 [label="Enter class B" style="filled" fillcolor=red];
         86 [label="Exit class B" style="filled" fillcolor=red];
     }
-    subgraph cluster_20 {
-        color=blue
-        87 [label="Enter function bar" style="filled" fillcolor=red];
-        88 [label="Exit function bar" style="filled" fillcolor=red];
-    }
-    subgraph cluster_21 {
-        color=blue
-        89 [label="Enter function foo" style="filled" fillcolor=red];
-        90 [label="Exit function foo" style="filled" fillcolor=red];
-    }
     85 -> {86} [color=green];
-    86 -> {87 89} [color=green];
-    86 -> {87 89} [style=dashed];
+
+    subgraph cluster_20 {
+        color=red
+        87 [label="Enter function foo" style="filled" fillcolor=red];
+        88 [label="Exit function foo" style="filled" fillcolor=red];
+    }
     87 -> {88};
+
+    subgraph cluster_21 {
+        color=red
+        89 [label="Enter function bar" style="filled" fillcolor=red];
+        90 [label="Exit function bar" style="filled" fillcolor=red];
+    }
     89 -> {90};
 
     subgraph cluster_22 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/safeCalls/safeCalls.dot

@@ -79,26 +79,27 @@ digraph safeCalls_kt {
         26 [label="Enter class A" style="filled" fillcolor=red];
         27 [label="Exit class A" style="filled" fillcolor=red];
     }
+    26 -> {27} [color=green];
+
     subgraph cluster_7 {
-        color=blue
-        28 [label="Enter function id" style="filled" fillcolor=red];
-        29 [label="Exit function id" style="filled" fillcolor=red];
+        color=red
+        28 [label="Enter function bar" style="filled" fillcolor=red];
+        29 [label="Exit function bar" style="filled" fillcolor=red];
     }
+    28 -> {29};
+
     subgraph cluster_8 {
-        color=blue
+        color=red
         30 [label="Enter function bool" style="filled" fillcolor=red];
         31 [label="Exit function bool" style="filled" fillcolor=red];
     }
-    subgraph cluster_9 {
-        color=blue
-        32 [label="Enter function bar" style="filled" fillcolor=red];
-        33 [label="Exit function bar" style="filled" fillcolor=red];
-    }
-    26 -> {27} [color=green];
-    27 -> {28 30 32} [color=green];
-    27 -> {28 30 32} [style=dashed];
-    28 -> {29};
     30 -> {31};
+
+    subgraph cluster_9 {
+        color=red
+        32 [label="Enter function id" style="filled" fillcolor=red];
+        33 [label="Exit function id" style="filled" fillcolor=red];
+    }
     32 -> {33};
 
     subgraph cluster_10 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/smartCastInInit.dot

@@ -15,14 +15,13 @@ digraph smartCastInInit_kt {
         2 [label="Enter class S" style="filled" fillcolor=red];
         3 [label="Exit class S" style="filled" fillcolor=red];
     }
+    2 -> {3} [color=green];
+
     subgraph cluster_2 {
-        color=blue
+        color=red
         4 [label="Enter function foo" style="filled" fillcolor=red];
         5 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    2 -> {3} [color=green];
-    3 -> {4} [color=green];
-    3 -> {4} [style=dashed];
     4 -> {5};
 
     subgraph cluster_3 {

compiler/fir/analysis-tests/testData/resolve/smartcasts/stability/overridenOpenVal.dot

@@ -42,8 +42,16 @@ digraph overridenOpenVal_kt {
         }
         13 [label="Exit class B" style="filled" fillcolor=red];
     }
+    8 -> {9} [color=green];
+    8 -> {13} [style=dotted];
+    8 -> {9} [style=dashed];
+    9 -> {10};
+    10 -> {11};
+    11 -> {12};
+    12 -> {13} [color=green];
+
     subgraph cluster_5 {
-        color=blue
+        color=red
         14 [label="Enter function test_1" style="filled" fillcolor=red];
         subgraph cluster_6 {
             color=blue
@@ -75,15 +83,6 @@ digraph overridenOpenVal_kt {
         }
         31 [label="Exit function test_1" style="filled" fillcolor=red];
     }
-    8 -> {9} [color=green];
-    8 -> {13} [style=dotted];
-    8 -> {9} [style=dashed];
-    9 -> {10};
-    10 -> {11};
-    11 -> {12};
-    12 -> {13} [color=green];
-    13 -> {14} [color=green];
-    13 -> {14} [style=dashed];
     14 -> {15};
     15 -> {16};
     16 -> {17};

compiler/fir/analysis-tests/testData/resolve/smartcasts/variables/delayedAssignment.dot

@@ -14,8 +14,15 @@ digraph delayedAssignment_kt {
         }
         4 [label="Exit class A" style="filled" fillcolor=red];
     }
+    0 -> {1} [color=green];
+    0 -> {4} [style=dotted];
+    0 -> {1} [style=dashed];
+    1 -> {2};
+    2 -> {3};
+    3 -> {4} [color=green];
+
     subgraph cluster_2 {
-        color=blue
+        color=red
         5 [label="Enter function foo" style="filled" fillcolor=red];
         subgraph cluster_3 {
             color=blue
@@ -24,14 +31,6 @@ digraph delayedAssignment_kt {
         }
         8 [label="Exit function foo" style="filled" fillcolor=red];
     }
-    0 -> {1} [color=green];
-    0 -> {4} [style=dotted];
-    0 -> {1} [style=dashed];
-    1 -> {2};
-    2 -> {3};
-    3 -> {4} [color=green];
-    4 -> {5} [color=green];
-    4 -> {5} [style=dashed];
     5 -> {6};
     6 -> {7};
     7 -> {8};