[FIR] Tests. Add orthogonal edge routing for cfg dumps

compiler/fir/resolve/testData/resolve/cfg/binaryOperations.dot

@@ -1,4 +1,6 @@
 digraph binaryOperations_kt {
+graph [splines=ortho]
+
 subgraph test_1 {
   0 [shape=box label="Enter function test_1"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/cfg/booleanOperatorsWithConsts.dot

@@ -1,4 +1,6 @@
 digraph booleanOperatorsWithConsts_kt {
+graph [splines=ortho]
+
 subgraph test_1 {
   0 [shape=box label="Enter function test_1"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/cfg/complex.dot

@@ -1,4 +1,6 @@
 digraph complex_kt {
+graph [splines=ortho]
+
 subgraph fetchPluginReleaseDate {
   0 [shape=box label="Enter function fetchPluginReleaseDate"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/cfg/initBlock.dot

@@ -1,4 +1,6 @@
 digraph initBlock_kt {
+graph [splines=ortho]
+
 subgraph <init> {
   0 [shape=box label="Enter function <init>"];
   1 [shape=box label="Exit function <init>"];

compiler/fir/resolve/testData/resolve/cfg/jumps.dot

@@ -1,4 +1,6 @@
 digraph jumps_kt {
+graph [splines=ortho]
+
 subgraph test_1 {
   0 [shape=box label="Enter function test_1"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/cfg/lambdas.dot

@@ -1,4 +1,6 @@
 digraph lambdas_kt {
+graph [splines=ortho]
+
 subgraph run {
   0 [shape=box label="Enter function run"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/cfg/loops.dot

@@ -1,4 +1,6 @@
 digraph loops_kt {
+graph [splines=ortho]
+
 subgraph testWhile {
   0 [shape=box label="Enter function testWhile"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/cfg/propertiesAndInitBlocks.dot

@@ -1,4 +1,6 @@
 digraph propertiesAndInitBlocks_kt {
+graph [splines=ortho]
+
 subgraph run {
   0 [shape=box label="Enter function run"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/cfg/simple.dot

@@ -1,4 +1,6 @@
 digraph simple_kt {
+graph [splines=ortho]
+
 subgraph foo {
   0 [shape=box label="Enter function foo"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/cfg/tryCatch.dot

@@ -1,4 +1,6 @@
 digraph tryCatch_kt {
+graph [splines=ortho]
+
 subgraph test_1 {
   0 [shape=box label="Enter function test_1"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/cfg/when.dot

@@ -1,4 +1,6 @@
 digraph when_kt {
+graph [splines=ortho]
+
 subgraph test_1 {
   0 [shape=box label="Enter function test_1"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/smartcasts/booleanOperators.dot

@@ -1,4 +1,6 @@
 digraph booleanOperators_kt {
+graph [splines=ortho]
+
 subgraph foo {
   0 [shape=box label="Enter function foo"];
   1 [shape=box label="Exit function foo"];

compiler/fir/resolve/testData/resolve/smartcasts/boundSmartcasts.dot

@@ -1,4 +1,6 @@
 digraph boundSmartcasts_kt {
+graph [splines=ortho]
+
 subgraph foo {
   0 [shape=box label="Enter function foo"];
   1 [shape=box label="Exit function foo"];

compiler/fir/resolve/testData/resolve/smartcasts/casts.dot

@@ -1,4 +1,6 @@
 digraph casts_kt {
+graph [splines=ortho]
+
 subgraph test_1 {
   0 [shape=box label="Enter function test_1"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/smartcasts/elvis.dot

@@ -1,4 +1,6 @@
 digraph elvis_kt {
+graph [splines=ortho]
+
 subgraph foo {
   0 [shape=box label="Enter function foo"];
   1 [shape=box label="Exit function foo"];

compiler/fir/resolve/testData/resolve/smartcasts/equalsAndIdentity.dot

@@ -1,4 +1,6 @@
 digraph equalsAndIdentity_kt {
+graph [splines=ortho]
+
 subgraph foo {
   0 [shape=box label="Enter function foo"];
   1 [shape=box label="Exit function foo"];

compiler/fir/resolve/testData/resolve/smartcasts/equalsToBoolean.dot

@@ -1,4 +1,6 @@
 digraph equalsToBoolean_kt {
+graph [splines=ortho]
+
 subgraph foo {
   0 [shape=box label="Enter function foo"];
   1 [shape=box label="Exit function foo"];

compiler/fir/resolve/testData/resolve/smartcasts/inPlaceLambdas.dot

@@ -1,4 +1,6 @@
 digraph inPlaceLambdas_kt {
+graph [splines=ortho]
+
 subgraph foo {
   0 [shape=box label="Enter function foo"];
   1 [shape=box label="Exit function foo"];

compiler/fir/resolve/testData/resolve/smartcasts/nullability.dot

@@ -1,4 +1,6 @@
 digraph nullability_kt {
+graph [splines=ortho]
+
 subgraph foo {
   0 [shape=box label="Enter function foo"];
   1 [shape=box label="Exit function foo"];

compiler/fir/resolve/testData/resolve/smartcasts/returns.dot

@@ -1,4 +1,6 @@
 digraph returns_kt {
+graph [splines=ortho]
+
 subgraph test_0 {
   0 [shape=box label="Enter function test_0"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/smartcasts/simpleIf.dot

@@ -1,4 +1,6 @@
 digraph simpleIf_kt {
+graph [splines=ortho]
+
 subgraph test_1 {
   0 [shape=box label="Enter function test_1"];
   1 [shape=box label="Enter block"];

compiler/fir/resolve/testData/resolve/smartcasts/when.dot

@@ -1,4 +1,6 @@
 digraph when_kt {
+graph [splines=ortho]
+
 subgraph foo {
   0 [shape=box label="Enter function foo"];
   1 [shape=box label="Exit function foo"];

compiler/fir/resolve/tests/org/jetbrains/kotlin/fir/AbstractFirCfgBuildingTest.kt

@@ -60,6 +60,8 @@ abstract class AbstractFirCfgBuildingTest : AbstractFirResolveTestCase() {
 
         override fun visitFile(file: FirFile) {
             dotBuilder.appendln("digraph ${file.name.replace(".", "_")} {")
+                .appendln("graph [splines=ortho]")
+                .appendln()
             super.visitFile(file)
             dotBuilder.appendln("}")
         }