Minor: constructor IrExpressionBodyImpl(IrExpression)

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/EnumClassLowering.kt

@@ -194,7 +194,7 @@ class EnumClassLowering(val context: JvmBackendContext) : ClassLoweringPass {
             return IrFieldImpl(
                     enumEntry.startOffset, enumEntry.endOffset, JvmLoweredDeclarationOrigin.FIELD_FOR_ENUM_ENTRY,
                     fieldPropertyDescriptor,
-                    IrExpressionBodyImpl(enumEntryInitializer.startOffset, enumEntryInitializer.endOffset, enumEntryInitializer)
+                    IrExpressionBodyImpl(enumEntryInitializer)
             )
         }
 

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/BodyGenerator.kt

@@ -45,7 +45,7 @@ class BodyGenerator(val scopeOwner: DeclarationDescriptor, override val context:
             val ktDefaultValue = ktParameter.defaultValue ?: continue
             val valueParameter = getOrFail(BindingContext.VALUE_PARAMETER, ktParameter) as? ValueParameterDescriptor ?: continue
             val irDefaultValue = statementGenerator.generateExpression(ktDefaultValue)
-            irFunction.putDefault(valueParameter, IrExpressionBodyImpl(ktDefaultValue.startOffset, ktDefaultValue.endOffset, irDefaultValue))
+            irFunction.putDefault(valueParameter, IrExpressionBodyImpl(irDefaultValue))
         }
     }
 
@@ -64,8 +64,7 @@ class BodyGenerator(val scopeOwner: DeclarationDescriptor, override val context:
     }
 
     fun generatePropertyInitializerBody(ktInitializer: KtExpression): IrExpressionBody =
-            IrExpressionBodyImpl(ktInitializer.startOffset, ktInitializer.endOffset,
-                                 createStatementGenerator().generateExpression(ktInitializer))
+            IrExpressionBodyImpl(createStatementGenerator().generateExpression(ktInitializer))
 
     fun generateLambdaBody(ktFun: KtFunctionLiteral): IrBody {
         val statementGenerator = createStatementGenerator()

compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/generators/PropertyGenerator.kt

@@ -60,7 +60,7 @@ class PropertyGenerator(val declarationGenerator: DeclarationGenerator) : Genera
         val irField = IrFieldImpl(ktParameter.startOffset, ktParameter.endOffset, IrDeclarationOrigin.PROPERTY_BACKING_FIELD, propertyDescriptor)
         val irGetParameter = IrGetValueImpl(ktParameter.startOffset, ktParameter.endOffset,
                                             valueParameterDescriptor, IrStatementOrigin.INITIALIZE_PROPERTY_FROM_PARAMETER)
-        irField.initializer = IrExpressionBodyImpl(ktParameter.startOffset, ktParameter.endOffset, irGetParameter)
+        irField.initializer = IrExpressionBodyImpl(irGetParameter)
         irProperty.backingField = irField
 
         val getter = propertyDescriptor.getter ?:

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/expressions/impl/IrExpressionBodyImpl.kt

@@ -27,6 +27,8 @@ class IrExpressionBodyImpl(startOffset: Int, endOffset: Int) : IrElementBase(sta
         this.expression = expression
     }
 
+    constructor(expression: IrExpression) : this(expression.startOffset, expression.endOffset, expression)
+
     override lateinit var expression: IrExpression
 
     override fun <R, D> accept(visitor: IrElementVisitor<R, D>, data: D): R =

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/DeepCopyIrTree.kt

@@ -178,10 +178,7 @@ open class DeepCopyIrTree : IrElementTransformerVoid() {
             throw IllegalArgumentException("Unsupported body type: $body")
 
     override fun visitExpressionBody(body: IrExpressionBody): IrExpressionBody =
-            IrExpressionBodyImpl(
-                    body.startOffset, body.endOffset,
-                    body.expression.transform(this, null)
-            )
+            IrExpressionBodyImpl(body.expression.transform(this, null))
 
     override fun visitBlockBody(body: IrBlockBody): IrBlockBody =
             IrBlockBodyImpl(