Revert "Allow CountIf and LookUp to coerce yes/no to Boolean (#187)" (#208)

* Revert "Allow CountIf and LookUp to coerce yes/no to Boolean (#187)"

This reverts commit 12b87ac778.

* Add test

src/libraries/Microsoft.PowerFx.Core/Texl/Builtins/CountIf.cs

@@ -8,6 +8,7 @@ using Microsoft.PowerFx.Core.Entities;
 using Microsoft.PowerFx.Core.Errors;
 using Microsoft.PowerFx.Core.Functions;
 using Microsoft.PowerFx.Core.Functions.Delegation;
+using Microsoft.PowerFx.Core.Functions.Delegation.DelegationMetadata;
 using Microsoft.PowerFx.Core.Localization;
 using Microsoft.PowerFx.Core.Syntax.Nodes;
 using Microsoft.PowerFx.Core.Types;
@@ -21,7 +22,7 @@ namespace Microsoft.PowerFx.Core.Texl.Builtins
     {
         public override bool RequiresErrorContext => true;
 
-        public override bool SupportsParamCoercion => true;
+        public override bool SupportsParamCoercion => false;
 
         public override DelegationCapability FunctionDelegationCapability => DelegationCapability.Filter | DelegationCapability.Count;
 
@@ -63,17 +64,10 @@ namespace Microsoft.PowerFx.Core.Texl.Builtins
             var fValid = CheckInvocation(args, argTypes, errors, out returnType, out nodeToCoercedTypeMap);
             Contracts.Assert(returnType == DType.Number);
 
-            // Ensure that all the args starting at index 1 are booleans or can be coersed.
+            // Ensure that all the args starting at index 1 are booleans.
             for (var i = 1; i < args.Length; i++)
             {
-                if (CheckType(args[i], argTypes[i], DType.Boolean, DefaultErrorContainer, out var matchedWithCoercion))
-                {
-                    if (matchedWithCoercion)
-                    {
-                        CollectionUtils.Add(ref nodeToCoercedTypeMap, args[i], DType.Boolean, allowDupes: true);
-                    }
-                }
-                else
+                if (!DType.Boolean.Accepts(argTypes[i]))
                 {
                     errors.EnsureError(DocumentErrorSeverity.Severe, args[i], TexlStrings.ErrBooleanExpected);
                     fValid = false;

src/libraries/Microsoft.PowerFx.Core/Texl/Builtins/Lookup.cs

@@ -5,7 +5,6 @@ using System.Collections.Generic;
 using Microsoft.PowerFx.Core.App.ErrorContainers;
 using Microsoft.PowerFx.Core.Binding;
 using Microsoft.PowerFx.Core.Entities;
-using Microsoft.PowerFx.Core.Errors;
 using Microsoft.PowerFx.Core.Functions;
 using Microsoft.PowerFx.Core.Functions.Delegation;
 using Microsoft.PowerFx.Core.Functions.Delegation.DelegationMetadata;
@@ -21,7 +20,7 @@ namespace Microsoft.PowerFx.Core.Texl.Builtins
     {
         public override bool RequiresErrorContext => true;
 
-        public override bool SupportsParamCoercion => true;
+        public override bool SupportsParamCoercion => false;
 
         public LookUpFunction()
             : base("LookUp", TexlStrings.AboutLookUp, FunctionCategories.Table, DType.Unknown, 0x6, 2, 3, DType.EmptyTable, DType.Boolean)
@@ -48,20 +47,6 @@ namespace Microsoft.PowerFx.Core.Texl.Builtins
             // The return type is dictated by the last argument (projection) if one exists. Otherwise it's based on first argument (source).
             returnType = args.Length == 2 ? argTypes[0].ToRecord() : argTypes[2];
 
-            // Ensure that the arg at index 1 is boolean or can be coersed.
-            if (CheckType(args[1], argTypes[1], DType.Boolean, DefaultErrorContainer, out var matchedWithCoercion))
-            {
-                if (matchedWithCoercion)
-                {
-                    CollectionUtils.Add(ref nodeToCoercedTypeMap, args[1], DType.Boolean, allowDupes: true);
-                }
-            }
-            else
-            {
-                errors.EnsureError(DocumentErrorSeverity.Severe, args[1], TexlStrings.ErrBooleanExpected);
-                fValid = false;
-            }
-
             return fValid;
         }
 

src/tests/Microsoft.PowerFx.Core.Tests/ExpressionTestCases/CountFunctions.txt

@@ -21,3 +21,6 @@ Blank()
 
 >> CountIf([1, 2, 0, 4, 5], 1/Value > 2)
 #Error
+
+>> CountIf([1, 2, 3, 4], 123)
+Errors: Error 22-25: Invalid argument type (Number). Expecting a Boolean value instead.