[Patch] BaseTools: Remove the redundant __FLEXIBLE_SIZE from PcdValueInit.c

["Bob Feng" <bob.c.feng@intel.com>]

For the multiple SKU cases, basetools generates multiple redundant
__FLEXIBLE_SIZE statement that is from the same line in dsc file.

This behavior causes the generated PcdValueInit.c file to have huge size,
and the compilation time is very long.

This patch is going to fix this issue.

Signed-off-by: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Yuwei Chen <yuwei.chen@intel.com>
---
 BaseTools/Source/Python/Workspace/DscBuildData.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/BaseTools/Source/Python/Workspace/DscBuildData.py b/BaseTools/Source/Python/Workspace/DscBuildData.py
index d29b9bf13d..fc1e773417 100644
--- a/BaseTools/Source/Python/Workspace/DscBuildData.py
+++ b/BaseTools/Source/Python/Workspace/DscBuildData.py
@@ -1874,10 +1874,11 @@ class DscBuildData(PlatformBuildClassObject):
                         FieldName = FieldName.split(']', 1)[1]
                     FieldName = NewFieldName + FieldName
                     while '[' in FieldName and not Pcd.IsArray():
                         FieldName = FieldName.rsplit('[', 1)[0]
                         CApp = CApp + '  __FLEXIBLE_SIZE(*Size, %s, %s, %d); // From %s Line %d Value %s\n' % (Pcd.DatumType, FieldName.strip("."), Array_Index + 1, FieldList[FieldName_ori][1], FieldList[FieldName_ori][2], FieldList[FieldName_ori][0])
+        flexisbale_size_statement_cache = set()
         for skuname in Pcd.SkuOverrideValues:
             if skuname == TAB_COMMON:
                 continue
             for defaultstorenameitem in Pcd.SkuOverrideValues[skuname]:
                 CApp = CApp + "// SkuName: %s,  DefaultStoreName: %s \n" % (skuname, defaultstorenameitem)
@@ -1886,10 +1887,14 @@ class DscBuildData(PlatformBuildClassObject):
                         ActualCap.append(index)
                     for FieldList in [Pcd.SkuOverrideValues[skuname][defaultstorenameitem][index]]:
                         if not FieldList:
                             continue
                         for FieldName in FieldList:
+                            fieldinfo = tuple(FieldList[FieldName])
+                            if fieldinfo in flexisbale_size_statement_cache:
+                                continue
+                            flexisbale_size_statement_cache.add(fieldinfo)
                             FieldName = "." + FieldName
                             IsArray = _IsFieldValueAnArray(FieldList[FieldName.strip(".")][0])
                             if IsArray and not (FieldList[FieldName.strip(".")][0].startswith('{GUID') and FieldList[FieldName.strip(".")][0].endswith('}')):
                                 try:
                                     Value = ValueExpressionEx(FieldList[FieldName.strip(".")][0], TAB_VOID, self._GuidDict)(True)
-- 
2.29.1.windows.1