Stub tests: test for parameters with fq name

idea/testData/stubs/ParametersWithFqName.expected

@@ -0,0 +1,7 @@
+PsiJetFileStubImpl[package=test]
+  CLASS:PsiJetClassStubImpl[name=A fqn=test.A superNames=[]]
+    VALUE_PARAMETER_LIST:PsiJetParameterListStubImpl
+      VALUE_PARAMETER:PsiJetParameterStubImpl[val name=b fqName=test.A.b  typeText=Int defaultValue=null]
+      VALUE_PARAMETER:PsiJetParameterStubImpl[var name=c fqName=test.A.c  typeText=String defaultValue=null]
+      VALUE_PARAMETER:PsiJetParameterStubImpl[val name=justParam typeText=Int defaultValue=null]
+    CLASS_BODY:PsiJetClassBodyStubImpl

idea/testData/stubs/ParametersWithFqName.kt

@@ -0,0 +1,4 @@
+package test
+
+class A(val b: Int, var c: String, justParam: Int) {
+}