Fix some of the bytecodeText tests

The changes are necessary because of release coroutines support:
- Get rid of suspendCoroutineOrReturn calls. It's anyway irrelevant
to what is being tested here

- In varValueConflictsWithTable.kt, variables slots have been shifted
because the variable for continuation's exception was removed

- In varValueConflictsWithTableSameSort.kt, a variable has been introduced
to preserve the same slot numbers for old variables.
Otherwise, they become shifted and to the second slot,
and there are a lot of irrelevant "ALOAD 2" instructions

This change is another example of why bytecode text tests are evil

compiler/backend/src/org/jetbrains/kotlin/codegen/ClassFileFactory.java

@@ -185,9 +185,16 @@ public class ClassFileFactory implements OutputFileCollection {
     @NotNull
     @TestOnly
     public String createText() {
+        return createText(null);
+    }
+
+    @NotNull
+    @TestOnly
+    public String createText(@Nullable String ignorePrefixPath) {
         StringBuilder answer = new StringBuilder();
 
         for (OutputFile file : asList()) {
+            if (ignorePrefixPath != null && file.getRelativePath().startsWith(ignorePrefixPath)) continue;
             File relativePath = new File(file.getRelativePath());
             answer.append("@").append(relativePath).append('\n');
             switch (FilesKt.getExtension(relativePath)) {