Synthetic properties made locale-independant too

compiler/frontend.java/src/org/jetbrains/kotlin/synthetic/JavaSyntheticPropertiesScope.kt

@@ -34,6 +34,7 @@ import org.jetbrains.kotlin.types.*
 import org.jetbrains.kotlin.types.typeUtil.isBoolean
 import org.jetbrains.kotlin.types.typeUtil.isSubtypeOf
 import org.jetbrains.kotlin.types.typeUtil.isUnit
+import org.jetbrains.kotlin.util.capitalizeDecapitalize.capitalizeAsciiOnly
 import org.jetbrains.kotlin.util.capitalizeDecapitalize.capitalizeFirstWord
 import org.jetbrains.kotlin.util.capitalizeDecapitalize.decapitalizeSmart
 import org.jetbrains.kotlin.utils.Printer
@@ -79,7 +80,7 @@ interface SyntheticJavaPropertyDescriptor : PropertyDescriptor {
             }
 
             if (!removePrefix) return methodName
-            val name = identifier.removePrefix(prefix).decapitalizeSmart()
+            val name = identifier.removePrefix(prefix).decapitalizeSmart(asciiOnly = true)
             if (!Name.isValidIdentifier(name)) return null
             return Name.identifier(name)
         }
@@ -96,7 +97,7 @@ class JavaSyntheticPropertiesScope(storageManager: StorageManager) : JetScopeImp
         val identifier = name.identifier
         if (identifier.isEmpty()) return null
         val firstChar = identifier[0]
-        if (!firstChar.isJavaIdentifierStart() || firstChar.isUpperCase()) return null
+        if (!firstChar.isJavaIdentifierStart() || firstChar in 'A'..'Z') return null
 
         val memberScope = ownerClass.unsubstitutedMemberScope
         val getMethod = possibleGetMethodNames(name)
@@ -221,8 +222,8 @@ class JavaSyntheticPropertiesScope(storageManager: StorageManager) : JetScopeImp
             result.add(propertyName)
         }
 
-        val capitalize1 = identifier.capitalize()
-        val capitalize2 = identifier.capitalizeFirstWord()
+        val capitalize1 = identifier.capitalizeAsciiOnly()
+        val capitalize2 = identifier.capitalizeFirstWord(asciiOnly = true)
         result.add(Name.identifier("get" + capitalize1))
         if (capitalize2 != capitalize1) {
             result.add(Name.identifier("get" + capitalize2))

compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/OnlyAscii.kt

@@ -0,0 +1,22 @@
+// FILE: KotlinFile.kt
+fun foo(javaClass: JavaClass) {
+    javaClass.КакоеТоСвойство = javaClass.КакоеТоСвойство + 1
+    javaClass.<!UNRESOLVED_REFERENCE!>какоеТоСвойство<!>
+
+    javaClass.КУ
+    javaClass.<!UNRESOLVED_REFERENCE!>ку<!>
+}
+
+// FILE: JavaClass.java
+public class JavaClass {
+    public int getКакоеТоСвойство() {
+        return 0;
+    }
+
+    public void setКакоеТоСвойство(int value) {
+    }
+
+    public int getКУ() {
+        return 0;
+    }
+}

compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/OnlyAscii.txt

@@ -0,0 +1,13 @@
+package
+
+public fun foo(/*0*/ javaClass: JavaClass): kotlin.Unit
+
+public open class JavaClass {
+    public constructor JavaClass()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open fun getКУ(): kotlin.Int
+    public open fun getКакоеТоСвойство(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open fun setКакоеТоСвойство(/*0*/ value: kotlin.Int): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/tests/org/jetbrains/kotlin/checkers/JetDiagnosticsTestGenerated.java

@@ -15059,6 +15059,12 @@ public class JetDiagnosticsTestGenerated extends AbstractJetDiagnosticsTest {
                     doTest(fileName);
                 }
 
+                @TestMetadata("OnlyAscii.kt")
+                public void testOnlyAscii() throws Exception {
+                    String fileName = JetTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/OnlyAscii.kt");
+                    doTest(fileName);
+                }
+
                 @TestMetadata("OnlyPublic.kt")
                 public void testOnlyPublic() throws Exception {
                     String fileName = JetTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/OnlyPublic.kt");