report all partial method symbols.

src/Compilers/CSharp/Portable/Symbols/Source/SourceOrdinaryMethodSymbol.cs

@@ -132,7 +132,7 @@ internal sealed class SourceOrdinaryMethodSymbol : SourceMemberMethodSymbol
                     syntax.Modifiers.Any(SyntaxKind.OverrideKeyword))
                 {
                     diagnostics.Add(
-                        ErrorCode.ERR_OverrideWithConstraints, 
+                        ErrorCode.ERR_OverrideWithConstraints,
                         syntax.ConstraintClauses[0].WhereKeyword.GetLocation());
                 }
             }
@@ -328,8 +328,8 @@ private void MethodChecks(MethodDeclarationSyntax syntax, Binder withTypeParamsB
 
                     if ((object)overriddenMethod != null)
                     {
-                        CustomModifierUtils.CopyMethodCustomModifiers(overriddenMethod, this, out _lazyReturnType, 
-                                                                      out _lazyCustomModifiers, 
+                        CustomModifierUtils.CopyMethodCustomModifiers(overriddenMethod, this, out _lazyReturnType,
+                                                                      out _lazyCustomModifiers,
                                                                       out _lazyParameters, alsoCopyParamsModifier: true);
                     }
                 }
@@ -344,7 +344,7 @@ private void MethodChecks(MethodDeclarationSyntax syntax, Binder withTypeParamsB
                     Debug.Assert(_lazyExplicitInterfaceImplementations.IsDefault);
                     _lazyExplicitInterfaceImplementations = ImmutableArray.Create<MethodSymbol>(implementedMethod);
 
-                    CustomModifierUtils.CopyMethodCustomModifiers(implementedMethod, this, out _lazyReturnType, 
+                    CustomModifierUtils.CopyMethodCustomModifiers(implementedMethod, this, out _lazyReturnType,
                                                                   out _lazyCustomModifiers,
                                                                   out _lazyParameters, alsoCopyParamsModifier: false);
                 }
@@ -441,7 +441,7 @@ private void CompleteAsyncMethodChecks(DiagnosticBag diagnosticsOpt, Cancellatio
                 {
                     AddDeclarationDiagnostics(diagnosticsOpt);
                 }
-                if (IsPartialDefinition && (object)PartialImplementationPart == null)
+                if (IsPartialDefinition)
                 {
                     DeclaringCompilation.SymbolDeclaredEvent(this);
                 }

src/Compilers/CSharp/Test/Semantic/Diagnostics/CompilationEventTests.cs

@@ -98,6 +98,7 @@ partial class C<T1>
                 "SymbolDeclaredCompilationEvent(F int C<T1>.F @ : (6,8)-(6,14))",
                 "SymbolDeclaredCompilationEvent(C C<T1> @ : (2,2)-(8,3), : (9,2)-(12,3))",
                 "SymbolDeclaredCompilationEvent(M void C<T1>.M(int x1) @ : (4,4)-(4,27))",
+                "SymbolDeclaredCompilationEvent(M void C<T1>.M(int x2) @ : (11,4)-(11,29))",
                 "SymbolDeclaredCompilationEvent(N N @ : (0,0)-(13,1))",
                 "SymbolDeclaredCompilationEvent(<empty>  @ : (0,0)-(13,1))",
                 "SymbolDeclaredCompilationEvent(get_P int C<T1>.P.get @ : (5,21)-(5,25))",

src/Compilers/VisualBasic/Portable/Compilation/MethodCompiler.vb

@@ -634,7 +634,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic
                         If method.IsPartial() Then
                             Dim impl = method.PartialImplementationPart
                             If impl IsNot method Then
-                                If CType(method, SourceMethodSymbol).SetDiagnostics(ImmutableArray(Of Diagnostic).Empty) AndAlso impl Is Nothing Then
+                                If CType(method, SourceMethodSymbol).SetDiagnostics(ImmutableArray(Of Diagnostic).Empty) Then
                                     method.DeclaringCompilation.SymbolDeclaredEvent(method)
                                 End If
 

src/Compilers/VisualBasic/Test/Semantic/Diagnostics/CompilationEventTests.vb

@@ -110,6 +110,7 @@ End Namespace
                 "SymbolDeclaredCompilationEvent(I C(Of T1).I As Integer @ TestQueuedSymbols.vb: (7,15)-(7,16))",
                 "SymbolDeclaredCompilationEvent(C C(Of T1) @ TestQueuedSymbols.vb: (1,4)-(11,13), TestQueuedSymbols.vb: (12,4)-(15,13))",
                 "SymbolDeclaredCompilationEvent(M Sub C(Of T1).M(x1 As Integer) @ TestQueuedSymbols.vb: (2,8)-(2,44))",
+                "SymbolDeclaredCompilationEvent(M Sub C(Of T1).M(x1 As Integer) @ TestQueuedSymbols.vb: (13,8)-(13,36))",
                 "SymbolDeclaredCompilationEvent(M2 Sub Mod1.M2() @ TestQueuedSymbols.vb: (17,8)-(17,24))",
                 "SymbolDeclaredCompilationEvent(get_P Property Get C(Of T1).P() As Integer)",
                 "SymbolDeclaredCompilationEvent(set_P Property Set C(Of T1).P(AutoPropertyValue As Integer))",