Fix js-stdlib compilation and tests.

js/js.libraries/src/core/char.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2010-2015 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package kotlin.js
+
+// actually \s is enough to match all whitespace, but \xA0 added because of different regexp behavior of Rhino used in Selenium tests
+public fun Char.isWhitespace(): Boolean = toString().matches("[\\s\\xA0]")

js/js.libraries/src/core/javalang.kt

@@ -37,7 +37,7 @@ public trait Appendable {
 }
 
 library
-public class StringBuilder() : Appendable {
+public class StringBuilder(capacity: Int? = null) : Appendable {
     override fun append(c: Char): StringBuilder = noImpl
     override fun append(csq: CharSequence?): StringBuilder = noImpl
     override fun append(csq: CharSequence?, start: Int, end: Int): StringBuilder = noImpl

js/js.libraries/src/core/string.kt

@@ -31,7 +31,8 @@ native public fun String.concat(str : String) : String = noImpl
 
 native public fun String.match(regex : String) : Array<String> = noImpl
 
-native public fun String.trim() : String = noImpl
+//native public fun String.trim() : String = noImpl
+//TODO: String.replace to implement effective trimLeading and trimTrailing
 
 native("length")
 public val CharSequence.size: Int get() = noImpl