Fix tests: "Placing function type parameters after the function name" error

idea/testData/intentions/swapBinaryExpression/is.kt

@@ -2,7 +2,7 @@
 // ERROR: 'if' must have both main and 'else' branches if used as an expression
 // ERROR: Expression 'if "test" is String' of type 'kotlin.Unit' cannot be invoked as a function. The function invoke() is not found
 
-fun doSomething<T>(a: T) {}
+fun <T> doSomething(a: T) {}
 
 fun main() {
     if <caret>"test" is String {