Created module idea-test-framework and moved classes needed for idea tests there

Moved tests for completion and their test data into module idea-completion

idea/idea-completion/testData/basic/common/namedParameters/WithParameterExpression.kt

@@ -0,0 +1,12 @@
+val paramTest = 12
+
+fun small(paramFirst: Int, paramSecond: Int) {
+}
+
+fun test() = small(param<caret>First = 12)
+
+// EXIST: paramFirst
+// EXIST: paramSecond
+// EXIST: paramTest
+
+// NUMBER: 3