### What's done:
- Fixed incorrect logic of String.toFloat() and String.toDouble().
Long string without any digits were treated as Float or Double:
"this string does not look as float isn't it?".toFloat() == "Infinity".
- Fixed incorrect parsing of floating point constants "NaN" and "Infinity":
String values like "NaNPICEZy" or "InfinityN" were treated as valid numbers.
- Merged parsing logic for Double and Float:
Removed the code duplication, unified methods, made the code more Kotlin-like, not C++-like.
- Updated tests:
Removed useless tests that checked nothing, updated tests with regression scenarios.
I was forced to manually do update the following files, because otherwise
they would be ignored according .gitignore settings. Probably they
should be deleted from repo.
Interop/.idea/compiler.xml
Interop/.idea/gradle.xml
Interop/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_runtime_1_0_3.xml
Interop/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_stdlib_1_0_3.xml
Interop/.idea/modules.xml
Interop/.idea/modules/Indexer/Indexer.iml
Interop/.idea/modules/Runtime/Runtime.iml
Interop/.idea/modules/StubGenerator/StubGenerator.iml
backend.native/backend.native.iml
backend.native/bc.frontend/bc.frontend.iml
backend.native/cli.bc/cli.bc.iml
backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt
backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2NativeCompilerArguments.kt
backend.native/tests/link/lib/foo.kt
backend.native/tests/link/lib/foo2.kt
backend.native/tests/teamcity-test.property
Pavel Punegov