[Misc] Fix errors checking in QuickFixMultiModuleTest

This test was checking errors *before* applying action, rather than
*after*, like all other QuickFix-tests do. This commit moves
errors-check after performing quick-fix action, and changes testdata:

- for most tests errors are simply gone (as quickfix usually fixes that
error)
- also, for implementMembersInActualClassNoExpectMember we add
'DISABLE-ERROR', similarly to
implementMembersInImplClassNonImplInheritor. This is needed because
'Implement Members'-fix created 'TODO'-calls, which are not resolved in
those tests due to the lack of stdlib. Previously, there were no errors
in this test exactly because file was checked *before* applying quickfix
(i.e. when there were no 'TODO()' in file)

idea/testData/multiModuleQuickFix/createFunInExpectClass/header/header.kt

@@ -1,5 +1,4 @@
 // "Create member function 'Foo.foo'" "true"
-// ERROR: Unresolved reference: foo
 
 expect class Foo
 

idea/testData/multiModuleQuickFix/createFunInExpectClass/header/header.kt.after

@@ -1,5 +1,4 @@
 // "Create member function 'Foo.foo'" "true"
-// ERROR: Unresolved reference: foo
 
 expect class Foo {
     fun foo(s: String, i: Int)