Support @param and @sparam annotations

compiler/frontend/src/org/jetbrains/kotlin/diagnostics/Errors.java

@@ -138,6 +138,7 @@ public interface Errors {
     DiagnosticFactory0<PsiElement> INAPPLICABLE_SET_TARGET = DiagnosticFactory0.create(ERROR);
     DiagnosticFactory0<PsiElement> INAPPLICABLE_TARGET_PROPERTY_IMMUTABLE = DiagnosticFactory0.create(ERROR);
     DiagnosticFactory0<PsiElement> INAPPLICABLE_RECEIVER_TARGET = DiagnosticFactory0.create(ERROR);
+    DiagnosticFactory0<PsiElement> INAPPLICABLE_SPARAM_TARGET = DiagnosticFactory0.create(ERROR);
 
     // Classes and traits
 

compiler/frontend/src/org/jetbrains/kotlin/diagnostics/rendering/DefaultErrorMessages.java

@@ -131,6 +131,7 @@ public class DefaultErrorMessages {
         MAP.put(INAPPLICABLE_SET_TARGET, "''@set:'' annotations could be applied only to property declarations");
         MAP.put(INAPPLICABLE_TARGET_PROPERTY_IMMUTABLE, "Property must be mutable");
         MAP.put(INAPPLICABLE_RECEIVER_TARGET, "''@receiver:'' annotations could be applied only to extension function or extension property declarations");
+        MAP.put(INAPPLICABLE_SPARAM_TARGET, "''@sparam:'' annotations could be applied only to property declarations");
 
         MAP.put(REDUNDANT_MODIFIER, "Modifier ''{0}'' is redundant because ''{1}'' is present", TO_STRING, TO_STRING);
         MAP.put(ABSTRACT_MODIFIER_IN_TRAIT, "Modifier ''abstract'' is redundant in interface");

compiler/frontend/src/org/jetbrains/kotlin/psi/JetAnnotationUseSiteTarget.kt

@@ -42,6 +42,8 @@ public class JetAnnotationUseSiteTarget : JetElementImplStub<KotlinPlaceHolderSt
             JetTokens.GET_KEYWORD -> AnnotationUseSiteTarget.PROPERTY_GETTER
             JetTokens.SET_KEYWORD -> AnnotationUseSiteTarget.PROPERTY_SETTER
             JetTokens.RECEIVER_KEYWORD -> AnnotationUseSiteTarget.RECEIVER
+            JetTokens.PARAM_KEYWORD -> AnnotationUseSiteTarget.CONSTRUCTOR_PARAMETER
+            JetTokens.SPARAM_KEYWORD -> AnnotationUseSiteTarget.SETTER_PARAMETER
             else -> throw IllegalStateException("Unknown annotation target " + node.getText())
         }
     }

compiler/frontend/src/org/jetbrains/kotlin/resolve/ModifiersChecker.java

@@ -255,6 +255,10 @@ public class ModifiersChecker {
                         }
                         break;
                     }
+                    case SETTER_PARAMETER: {
+                        reportIfNotMutableProperty(descriptor, annotation, INAPPLICABLE_SPARAM_TARGET);
+                        break;
+                    }
                 }
             }
         }