Change part class naming scheme

update tests depending on part class naming

compiler/testData/codegen/topLevelMemberInvocation/extensionFunction/a1.kt

@@ -0,0 +1,8 @@
+fun Int.test1() {}
+
+fun test2() {
+    1.test1()
+}
+
+// 2 INVOKESTATIC A1Kt.test1 \(I\)V
+// 1 INVOKESTATIC A1Kt.test2 \(\)V

compiler/testData/codegen/topLevelMemberInvocation/functionDifferentPackage/a1.kt

@@ -0,0 +1,6 @@
+package a
+
+fun test1() {}
+
+// 2 INVOKESTATIC a/A1Kt.test1 \(\)V
+// 1 INVOKESTATIC b/A2Kt.test2 \(\)V

compiler/testData/codegen/topLevelMemberInvocation/functionSamePackage/a1.kt

@@ -0,0 +1,8 @@
+fun test1() {}
+
+fun test2() {
+    test1()
+}
+
+// 2 INVOKESTATIC A1Kt.test1 \(\)V
+// 1 INVOKESTATIC A1Kt.test2 \(\)V

compiler/testData/codegen/topLevelMemberInvocation/property/a1.kt

@@ -0,0 +1,6 @@
+package a
+
+val prop = 1
+
+// 2 INVOKESTATIC a/A1Kt.getProp \(\)I
+// 1 GETSTATIC a/A1Kt.prop \: I

compiler/testData/codegen/topLevelMemberInvocation/propertyWithGetter/a1.kt

@@ -0,0 +1,9 @@
+package a
+
+val prop: Int = 0
+    get() {
+        return $prop + 1
+    }
+
+// 2 INVOKESTATIC a/A1Kt.getProp \(\)I
+// 1 GETSTATIC a/A1Kt.prop \: I