Replace all throw error(...) with just error(...)

`throw` is not needed in this case, because `error(...)` already
  raises exception (so `throw` is unreachable). Also after previous
  commit compiler reports `UNREACHABLE_CODE` warning on such `throw`

compiler/frontend/src/org/jetbrains/kotlin/analyzer/AbstractResolverForProject.kt

@@ -292,7 +292,7 @@ private object DiagnoseUnknownModuleInfoReporter {
                             else -> errorInModulesResolver(message)
                         }
                     }
-                    else -> throw errorInModulesResolver(message)
+                    else -> errorInModulesResolver(message)
                 }
             }
             name.contains(ResolverForProject.resolverForScriptDependenciesName) -> errorInScriptDependenciesInfoResolver(message)

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/MoveBodilessDeclarationsToSeparatePlace.kt

@@ -134,7 +134,7 @@ fun validateIsExternal(packageFragment: IrPackageFragment) {
 fun validateNestedExternalDeclarations(declaration: IrDeclaration, isExternalTopLevel: Boolean) {
     fun IrPossiblyExternalDeclaration.checkExternal() {
         if (isExternal != isExternalTopLevel) {
-            throw error("isExternal validation failed for declaration ${declaration.render()}")
+            error("isExternal validation failed for declaration ${declaration.render()}")
         }
     }
 

compiler/psi/src/org/jetbrains/kotlin/psi/KtFile.kt

@@ -190,7 +190,7 @@ open class KtFile(viewProvider: FileViewProvider, val isCompiled: Boolean) :
             return stub
         }
 
-        throw error("Illegal stub for KtFile: type=${this.javaClass}, stub=${stub?.javaClass} name=$name")
+        error("Illegal stub for KtFile: type=${this.javaClass}, stub=${stub?.javaClass} name=$name")
     }
 
     override fun getClasses(): Array<PsiClass> {

js/js.parser/src/org/jetbrains/kotlin/js/parser/sourcemaps/JSON.kt

@@ -143,7 +143,7 @@ private class JsonParser(val content: String) {
     fun parse(): JsonNode {
         val result = parseNode()
         skipSpaces()
-        if (charCode != -1) throw error("End of input expected")
+        if (charCode != -1) error("End of input expected")
         return result
     }
 

libraries/tools/kotlin-gradle-plugin-npm-versions-codegen/src/main/kotlin/org/jetbrains/kotlin/generators/gradle/targets/js/main.kt

@@ -59,7 +59,7 @@ fun findLastVersions(packages: List<PackageInformation>): List<Package> {
                     .filter { it.preRelease == null && it.build == null }
                     .maxOrNull()
                     ?.toString()
-                    ?: throw error("There is no applicable version for ${packageInformation.name}")
+                    ?: error("There is no applicable version for ${packageInformation.name}")
                 is HardcodedPackageInformation -> packageInformation.version
             }
 

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/webpack/KotlinWebpackCssSupport.kt

@@ -33,7 +33,7 @@ data class KotlinWebpackCssSupport(
         }
 
     private fun singleRuleError(): Nothing {
-        throw error("CSS mode shortcut can be applied only with one css rule")
+        error("CSS mode shortcut can be applied only with one css rule")
     }
 }