Fix temporary variable elimination in JS BE

Don't eliminate temporary variable when between its usage and its
definition there's assignment to a non-local variable.

Fix KT-17540

js/js.translator/testData/box/inlineEvaluationOrder/alsoWithReassingment.kt

@@ -0,0 +1,10 @@
+private var _value: String = "OK"
+
+private inline fun String.myAlso(f: (String) -> Unit): String {
+    f(this)
+    return this
+}
+
+fun overrideValueAndReturnOld(newValue: String) = _value.myAlso { _value = newValue }
+
+fun box() = overrideValueAndReturnOld("fail")

js/js.translator/testData/js-optimizer/temporary-variable/assignmentToOuterVar.optimized.js

@@ -0,0 +1,11 @@
+var value = "OK";
+
+function foo(newValue) {
+    var $tmp = value;
+    value = newValue;
+    return $tmp;
+}
+
+function box() {
+    return foo("fail");
+}

js/js.translator/testData/js-optimizer/temporary-variable/assignmentToOuterVar.original.js

@@ -0,0 +1,11 @@
+var value = "OK";
+
+function foo(newValue) {
+    var $tmp = value;
+    value = newValue;
+    return $tmp;
+}
+
+function box() {
+    return foo("fail");
+}