FIR: Fix rendered fir and DFA graph test data after safe-calls refactoring

^KT-38444 In Progress

compiler/fir/analysis-tests/testData/resolve/cfg/initBlockAndInPlaceLambda.dot

@@ -62,7 +62,7 @@ digraph initBlockAndInPlaceLambda_kt {
                 }
                 26 [label="Call arguments union" style="filled" fillcolor=yellow];
                 24 [label="Postponed exit from lambda"];
-                25 [label="Function call: R|<local>/a|.R|/A.b|?.R|kotlin/let|<R|B|, R|C|>(...)"];
+                25 [label="Function call: $subj$.R|kotlin/let|<R|B|, R|C|>(...)"];
                 22 [label="Exit safe call"];
                 27 [label="Variable declaration: lval c: R|C?|"];
                 28 [label="Exit block"];

compiler/fir/analysis-tests/testData/resolve/cfg/initBlockAndInPlaceLambda.txt

@@ -12,10 +12,10 @@ FILE: initBlockAndInPlaceLambda.kt
         }
 
         init {
-            lval c: R|C?| = R|<local>/a|.R|/A.b|?.R|kotlin/let|<R|B|, R|C|>(<L> = let@fun <anonymous>(it: R|B|): R|C| <kind=EXACTLY_ONCE>  {
+            lval c: R|C?| = R|<local>/a|.R|/A.b|?.{ $subj$.R|kotlin/let|<R|B|, R|C|>(<L> = let@fun <anonymous>(it: R|B|): R|C| <kind=EXACTLY_ONCE>  {
                 ^ R|/C.C|(R|<local>/a|, R|<local>/it|)
             }
-            )
+            ) }
         }
 
     }

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

@@ -62,10 +62,10 @@ digraph safeCalls_kt {
         16 [label="Enter function test_1" style="filled" fillcolor=red];
         18 [label="Access variable R|<local>/x|"];
         19 [label="Enter safe call"];
-        21 [label="Function call: R|<local>/x|?.R|/A.foo|()"];
+        21 [label="Function call: $subj$.R|/A.foo|()"];
         20 [label="Exit safe call"];
         22 [label="Enter safe call"];
-        24 [label="Function call: R|<local>/x|?.R|/A.foo|()?.R|/A.bar|()"];
+        24 [label="Function call: $subj$.R|/A.bar|()"];
         23 [label="Exit safe call"];
         17 [label="Exit function test_1" style="filled" fillcolor=red];
     }

compiler/fir/analysis-tests/testData/resolve/cfg/safeCalls.txt

@@ -14,8 +14,8 @@ FILE: safeCalls.kt
 
     }
     public final fun test_1(x: R|A?|): R|kotlin/Unit| {
-        R|<local>/x|?.R|/A.foo|()?.R|/A.bar|()
+        R|<local>/x|?.{ $subj$.R|/A.foo|() }?.{ $subj$.R|/A.bar|() }
     }
     public final fun test_2(x: R|B?|): R|kotlin/Unit| {
-        R|<local>/x|?.R|/B.foo|?.R|/B.bar|
+        R|<local>/x|?.{ $subj$.R|/B.foo| }?.{ $subj$.R|/B.bar| }
     }