Use '$' instead of '-' in package part class names

Otherwise some tools break (e.g. CheckMethodAdapter in ASM, used in generic
signature writer) because they expect class names to be Java identifiers.

Some tests fixed, some will be fixed in future commits

compiler/testData/codegen/bytecodeText/defaultDelegation.kt

@@ -5,4 +5,4 @@ fun simpleFoo(s: Int = 111) {
 }
 
 // 1 BIPUSH 111
-// 1 INVOKESTATIC foo/FooPackage-.*\.simpleFoo\$default \(II\)V
+// 1 INVOKESTATIC foo/FooPackage.+\.simpleFoo\$default \(II\)V

compiler/testData/codegen/bytecodeText/inlineFromOtherModule.kt

@@ -3,5 +3,5 @@ fun foo() {
 }
 
 // assert function will be inlined, and we assure that there are no calls via package part, but is call via package facade in inlined code
-// 0 INVOKESTATIC kotlin\/KotlinPackage-[^-]+-[^-]+.getASSERTIONS_ENABLED \(\)Z
-// 1 INVOKESTATIC kotlin\/KotlinPackage.getASSERTIONS_ENABLED \(\)Z
+// 0 INVOKESTATIC kotlin\/KotlinPackage.+\.getASSERTIONS_ENABLED \(\)Z
+// 1 INVOKESTATIC kotlin\/KotlinPackage\.getASSERTIONS_ENABLED \(\)Z

compiler/testData/codegen/bytecodeText/topLevelFunWithDefaultArgs.kt

@@ -1,4 +1,4 @@
 fun foo(a: Int = 1) {}
 
-//0 _DefaultPackage.foo
-//3 INVOKESTATIC _DefaultPackage-
+// 0 _DefaultPackage.foo
+// 3 INVOKESTATIC _DefaultPackage.+

compiler/testData/codegen/bytecodeText/whenEnumOptimization/expression.kt

@@ -24,4 +24,3 @@ fun bar2(x : Season) : String {
 }
 
 // 2 TABLESWITCH
-// 1 @_DefaultPackage-expression-.*\$WhenMappings\.class

compiler/testData/codegen/bytecodeText/whenEnumOptimization/functionLiteralInTopLevel.kt

@@ -19,4 +19,3 @@ fun box() : String {
 }
 
 // 1 LOOKUPSWITCH
-// 1 @_DefaultPackage-functionLiteralInTopLevel-[a-z0-9]+\$WhenMappings.class

compiler/testData/codegen/bytecodeText/whenEnumOptimization/manyWhensWithinClass.kt

@@ -33,4 +33,3 @@ class A {
 }
 
 // 2 TABLESWITCH
-// 1 @abc/foo/A\$WhenMappings\.class

compiler/testData/codegen/bytecodeText/whenEnumOptimization/withoutElse.kt

@@ -28,4 +28,3 @@ fun bar2(x : Season) : String {
 }
 
 // 2 TABLESWITCH
-// 1 @_DefaultPackage-withoutElse-.*\$WhenMappings\.class