[IDE-NI-MIGRATE] Migrate completion tests for new inference

idea/idea-completion/testData/basic/common/boldOrGrayed/NonPredictableSmartCast.kt

@@ -1,3 +1,5 @@
+// COMPILER_ARGUMENTS: -XXLanguage:-NewInference
+
 fun String.forString(){}
 fun Any.forAny(){}
 

idea/idea-completion/testData/basic/common/boldOrGrayed/NonPredictableSmartCastWithWrongReturnType.kt

@@ -1,3 +1,5 @@
+// COMPILER_ARGUMENTS: -XXLanguage:-NewInference
+
 interface A {
     fun foo(): Any
     fun bar()

idea/idea-completion/testData/handlers/basic/AddLabelToReturn.kt

@@ -1,3 +1,5 @@
+// COMPILER_ARGUMENTS: -XXLanguage:-NewInference
+
 val v: Boolean = run {
     return<caret> true
 }

idea/idea-completion/testData/handlers/basic/AddLabelToReturn.kt.after

@@ -1,3 +1,5 @@
+// COMPILER_ARGUMENTS: -XXLanguage:-NewInference
+
 val v: Boolean = run {
     return@run <caret>true
 }

idea/idea-completion/testData/handlers/keywords/QualifiedReturnNonUnit.kt

@@ -1,3 +1,5 @@
+// COMPILER_ARGUMENTS: -XXLanguage:-NewInference
+
 fun foo() {
     takeHandler1 {
         takeHandler2({ ret<caret> })

idea/idea-completion/testData/handlers/keywords/QualifiedReturnNonUnit.kt.after

@@ -1,3 +1,5 @@
+// COMPILER_ARGUMENTS: -XXLanguage:-NewInference
+
 fun foo() {
     takeHandler1 {
         takeHandler2({ return@takeHandler2 <caret> })

idea/idea-completion/testData/handlers/keywords/QualifiedReturnNonUnitExplicit.kt

@@ -1,3 +1,5 @@
+// COMPILER_ARGUMENTS: -XXLanguage:-NewInference
+
 fun foo() {
     takeHandler1 {
         takeHandler2({ -> ret<caret> })

idea/idea-completion/testData/handlers/keywords/QualifiedReturnNonUnitExplicit.kt.after

@@ -1,3 +1,5 @@
+// COMPILER_ARGUMENTS: -XXLanguage:-NewInference
+
 fun foo() {
     takeHandler1 {
         takeHandler2({ -> return@takeHandler2 <caret> })

idea/idea-completion/testData/smart/lambdaSignature/MultipleParameters.kt

@@ -1,3 +1,5 @@
+// COMPILER_ARGUMENTS: -XXLanguage:-NewInference
+
 fun foo(p: Int) {
     "abc".fold(1) { <caret> }
 }

idea/idea-completion/testData/weighers/basic/LambdaSignature.kt

@@ -1,3 +1,5 @@
+// COMPILER_ARGUMENTS: -XXLanguage:-NewInference
+
 fun <R> String.fold(initial: R, operation: (acc: R, Char) -> R): R = TODO()
 
 fun foo(p: Int) {