Fix tests: "infix modifier required" and "operator modifier required" errors

compiler/testData/codegen/boxWithStdlib/fullJdk/regressions/kt1202.kt

@@ -45,14 +45,14 @@ class Error(text : String) : Token("[Error: $text]")
 fun tokenize(text : String) : Deque<Token> {
     val result = LinkedList<Token>()
     for (c in text) {
-        result add when (c) {
+        result.add(when (c) {
             '(' -> LPAR
             ')' -> RPAR
             '+' -> PLUS
             '*' -> TIMES
             in '0'..'9' -> Number(c.toString())
             else -> Error(c.toString())
-        }
+        })
     }
     result.add(EOF)
     return result

compiler/testData/codegen/boxWithStdlib/fullJdk/smap/infixCalls.kt

@@ -53,7 +53,7 @@ inline fun test(): String {
     return "123"
 }
 
-fun String.fail(p: String): String {
+infix fun String.fail(p: String): String {
     throw AssertionError("fail")
 }
 

compiler/testData/codegen/boxWithStdlib/fullJdk/synchronized/exceptionInMonitorExpression.kt

@@ -8,7 +8,7 @@ fun box(): String {
         }
     }
     catch (caught: Throwable) {
-        if (!(caught identityEquals e)) return "Fail: $caught"
+        if (!(caught.identityEquals(e))) return "Fail: $caught"
     }
 
     return "OK"

compiler/testData/codegen/boxWithStdlib/fullJdk/synchronized/finally.kt

@@ -8,7 +8,7 @@ fun box(): String {
         }
     }
     catch (caught: Throwable) {
-        if (!(caught identityEquals e)) return "Fail: $caught"
+        if (!(caught.identityEquals(e))) return "Fail: $caught"
         // If monitorexit didn't happen (a finally block failed), this assertion would fail
         assertThatThreadDoesNotOwnMonitor(obj)
     }