Sanitize compiler version for version requirement checks

Strip everything after (and including) the first '-' character.

The previous approach of skipping the checks if "SNAPSHOT" is in the
version, is subsumed by the new one because "1.2-SNAPSHOT" now becomes
"1.2" with regards to the version requirement checks, which allows the
compiler to use the 1.2-only API

compiler/frontend/src/org/jetbrains/kotlin/resolve/deprecationUtil.kt

@@ -345,7 +345,7 @@ class DeprecationResolver(
             ProtoBuf.VersionRequirement.VersionKind.API_VERSION ->
                 languageVersionSettings.apiVersion.version
             ProtoBuf.VersionRequirement.VersionKind.COMPILER_VERSION ->
-                KotlinCompilerVersion.getVersion()?.takeIf { "SNAPSHOT" !in it }?.let(::createVersion)
+                KotlinCompilerVersion.getVersion()?.substringBefore('-')?.let(::createVersion)
             else -> null
         }
         if (currentVersion != null && currentVersion < requiredVersion) {