[dartfuzz] Fix infinite recursion in call methods

Change-Id: Ia9add544bdb12fa806dbcfcedf41ccf023d48fa3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127204
Commit-Queue: Fizaa Luthra <fizaaluthra@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>

runtime/tools/dartfuzz/dartfuzz.dart

@@ -14,7 +14,7 @@ import 'dartfuzz_type_table.dart';
 // Version of DartFuzz. Increase this each time changes are made
 // to preserve the property that a given version of DartFuzz yields
 // the same fuzzed program for a deterministic random seed.
-const String version = '1.74';
+const String version = '1.75';
 
 // Restriction on statements and expressions.
 const int stmtDepth = 1;
@@ -167,11 +167,7 @@ class CallMethod extends Method {
   String emitCall(int depth,
       {RhsFilter rhsFilter, bool includeSemicolon = false}) {
     String outputName;
-    if (fuzzer.currentClass == null) {
-      outputName = "${className}()";
-    } else {
-      outputName = fuzzer.coinFlip() ? name : "this";
-    }
+    outputName = "${className}()";
     fuzzer.emitLn(outputName, newline: false);
     fuzzer.emitExprList(depth + 1, parameters, rhsFilter: rhsFilter);
     if (includeSemicolon) {