Floor division and remainder for numeric types KT-26234

- floorDiv/mod for unsigned types
- floorDiv/mod for signed types
- mod for floating point types

- mod return type: same as divisor for integer types

- Update JS API dump
- Avoid triggering division overflow in tests due to K/N
- Workaround failing test in JS-legacy

generators/builtins/common.kt

@@ -1,17 +1,6 @@
 /*
- * 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.
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
 package org.jetbrains.kotlin.generators.builtins
@@ -73,4 +62,6 @@ fun areEqualNumbers(v: String) = "$v == other.$v"
 
 fun hashLong(v: String) = "($v xor ($v ushr 32))"
 
-fun convert(v: String, from: UnsignedType, to: UnsignedType) = if (from == to) v else "$v.to${to.capitalized}()"
+fun convert(v: String, from: UnsignedType, to: UnsignedType) = if (from == to) v else "$v.to${to.capitalized}()"
+
+fun convert(v: String, from: PrimitiveType, to: PrimitiveType) = if (from == to) v else "$v.to${to.capitalized}()"