[IDEA-TESTS] Specify language version in feature-dependent tests

Some quickfixes are relying on diagnostics, that won't be reported
with new language features enabled.
`MixedNamedArgumentsInTheirOwnPosition`
`AllowBreakAndContinueInsideWhen`

idea/testData/quickfix/createFromUsage/createVariable/primaryParameter/valOnUserType.kt

@@ -1,5 +1,4 @@
 // "Create property 'foo' as constructor parameter" "true"
-// ERROR: The feature "trailing commas" is only available since language version 1.4
 // ERROR: No value passed for parameter 'foo'
 
 class A<T>(val n: T)

idea/testData/quickfix/createFromUsage/createVariable/primaryParameter/valOnUserType.kt.after

@@ -1,5 +1,4 @@
 // "Create property 'foo' as constructor parameter" "true"
-// ERROR: The feature "trailing commas" is only available since language version 1.4
 // ERROR: No value passed for parameter 'foo'
 
 class A<T>(val n: T, val foo: A<Int>)

idea/testData/quickfix/createFromUsage/createVariable/primaryParameter/varOnUserType.kt

@@ -1,5 +1,4 @@
 // "Create property 'foo' as constructor parameter" "true"
-// ERROR: The feature "trailing commas" is only available since language version 1.4
 // ERROR: No value passed for parameter 'foo'
 
 class A<T>(val n: T)

idea/testData/quickfix/createFromUsage/createVariable/primaryParameter/varOnUserType.kt.after

@@ -1,5 +1,4 @@
 // "Create property 'foo' as constructor parameter" "true"
-// ERROR: The feature "trailing commas" is only available since language version 1.4
 // ERROR: No value passed for parameter 'foo'
 
 class A<T>(val n: T, var foo: String)