Replace JavaClassifierType.canonicalText with classifierQualifiedName

The reason is that canonicalText requires some additional
computations to be done when reading class files, while
in fact we only need a class name of the type

compiler/frontend.java/src/org/jetbrains/kotlin/load/java/structure/impl/JavaClassifierTypeImpl.java

@@ -71,8 +71,8 @@ public class JavaClassifierTypeImpl extends JavaTypeImpl<PsiClassType> implement
 
     @Override
     @NotNull
-    public String getCanonicalText() {
-        return getPsi().getCanonicalText();
+    public String getClassifierQualifiedName() {
+        return ClassNamesUtilKt.convertCanonicalNameToQName(getPsi().getCanonicalText());
     }
 
     @Override

compiler/frontend.java/src/org/jetbrains/kotlin/load/java/structure/impl/classNamesUtil.kt

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2010-2017 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 org.jetbrains.kotlin.load.java.structure.impl
+
+import org.jetbrains.kotlin.name.SpecialNames
+
+fun String.convertCanonicalNameToQName() = splitCanonicalFqName().joinToString(separator = ".") { it.substringBefore('<') }
+
+// "test.A<B.C>.D<E<F.G, H>, I.J>" -> ["test", "A<B.C>", "D<E<F.G, H>, I.J>"]
+private fun String.splitCanonicalFqName(): List<String> {
+    fun String.toNonEmpty(): String =
+            if (this.isNotEmpty()) this else SpecialNames.SAFE_IDENTIFIER_FOR_NO_NAME.asString()
+
+    val result = arrayListOf<String>()
+    var balance = 0
+    var currentNameStart = 0
+    for ((index, character) in this.withIndex()) {
+        when (character) {
+            '.' -> if (balance == 0) {
+                result.add(this.substring(currentNameStart, index).toNonEmpty())
+                currentNameStart = index + 1
+            }
+            '<' -> balance++
+            '>' -> balance--
+        }
+    }
+    result.add(this.substring(currentNameStart).toNonEmpty())
+    return result
+}