Minor. Split BytecodeText tests about special builtin bridges

compiler/testData/codegen/bytecodeText/builtinFunctions/genericParameterBridge/mutableCollection.kt

@@ -0,0 +1,25 @@
+abstract class A1<Q> : MutableCollection<Q> {
+    override fun contains(o: Q): Boolean {
+        throw UnsupportedOperationException()
+    }
+
+    override fun containsAll(c: Collection<Q>): Boolean {
+        throw UnsupportedOperationException()
+    }
+}
+
+abstract class A2 : MutableCollection<String> {
+    override fun contains(o: String): Boolean {
+        throw UnsupportedOperationException()
+    }
+
+    override fun containsAll(c: Collection<String>): Boolean {
+        throw UnsupportedOperationException()
+    }
+}
+
+// 0 signature \(TQ;\)Z
+// 2 signature \(Ljava/util/Collection<\+Ljava/lang/Object;>;\)Z
+// 1 public final bridge contains\(Ljava/lang/Object;\)Z
+// 1 public final bridge remove\(Ljava/lang/Object;\)Z
+// 1 INVOKEVIRTUAL A[0-9]\.contains \(Ljava/lang/String;\)Z