[JS IR] Drop TemporaryAssignmentElimination optimization

Enable TemporaryAssignment tests

js/js.translator/testData/js-optimizer/temporary-assignment/tryCatch.optimized.js

@@ -3,40 +3,43 @@ function f(x) {
 }
 
 function testCatch1() {
+    var $tmp;
     var result;
     try {
-        result = f("testCatch1");
+        $tmp = f("testCatch1");
         throw new Error();
     } catch (e) {
+        result = $tmp;
     }
     return result;
 }
 
 function testCatch2() {
+    var $tmp;
     var result;
     try {
         throw new Error();
     } catch (e) {
+        result = $tmp;
     }
     return result;
 }
 
 function testFinally() {
     var result;
-    try {
-        result = f("testFinally");
-    } finally {
-    }
+    result = f("testFinally");
     return result;
 }
 
 function testOuter() {
+    var $tmp;
     var result;
     try {
-        result = f("testOuter");
+        $tmp = f("testOuter");
     } finally {
         f("23")
     }
+    result = $tmp;
     return result;
 }
 
@@ -54,4 +57,4 @@ function box() {
     if (result !== "testOuter") return "testOuter: " + result;
 
     return "OK";
-}
+}