Resolved: [Error] main.cpp@115,34: [Pe266]: "size" is ambiguous

`size` is part of std library since c++17, and results in build
errors for IAR 8.x.
https://en.cppreference.com/w/cpp/iterator/size

Author: Deepika

components/storage/blockdevice/COMPONENT_SD/TESTS/filesystem/files/main.cpp

@@ -75,7 +75,6 @@ DIR *dd[MBED_TEST_DIRS];
 FILE *fd[MBED_TEST_FILES];
 struct dirent ent;
 struct dirent *ed;
-size_t size;
 uint8_t buffer[MBED_TEST_BUFFER];
 uint8_t rbuffer[MBED_TEST_BUFFER];
 uint8_t wbuffer[MBED_TEST_BUFFER];
@@ -107,6 +106,7 @@ void test_simple_file_test()
     TEST_ASSERT_EQUAL(0, res);
 
     {
+        size_t size;
         res = fs.mount(&bd);
         TEST_ASSERT_EQUAL(0, res);
         res = file[0].open(&fs, "hello", O_WRONLY | O_CREAT);

components/storage/blockdevice/COMPONENT_SD/TESTS/filesystem/seek/main.cpp

@@ -75,7 +75,6 @@ DIR *dd[MBED_TEST_DIRS];
 FILE *fd[MBED_TEST_FILES];
 struct dirent ent;
 struct dirent *ed;
-size_t size;
 uint8_t buffer[MBED_TEST_BUFFER];
 uint8_t rbuffer[MBED_TEST_BUFFER];
 uint8_t wbuffer[MBED_TEST_BUFFER];
@@ -89,6 +88,7 @@ void test_seek_tests()
     TEST_ASSERT_EQUAL(0, res);
 
     {
+        size_t size;
         res = MBED_TEST_FILESYSTEM::format(&bd);
         TEST_ASSERT_EQUAL(0, res);
         res = fs.mount(&bd);
@@ -271,6 +271,7 @@ void test_simple_file_seek()
     TEST_ASSERT_EQUAL(0, res);
 
     {
+        size_t size;
         res = fs.mount(&bd);
         TEST_ASSERT_EQUAL(0, res);
         res = file[0].open(&fs, "hello/kitty42", O_RDONLY);
@@ -318,7 +319,7 @@ void test_simple_file_seek()
         res = memcmp(buffer, "kittycatcat", size);
         TEST_ASSERT_EQUAL(0, res);
 
-        size_t size = file[0].size();
+        size = file[0].size();
         res = file[0].seek(0, SEEK_CUR);
         TEST_ASSERT_EQUAL(size, res);
         res = file[0].close();
@@ -337,6 +338,7 @@ void test_large_file_seek()
     TEST_ASSERT_EQUAL(0, res);
 
     {
+        size_t size;
         res = fs.mount(&bd);
         TEST_ASSERT_EQUAL(0, res);
         res = file[0].open(&fs, "hello/kitty42", O_RDONLY);
@@ -384,7 +386,7 @@ void test_large_file_seek()
         res = memcmp(buffer, "kittycatcat", size);
         TEST_ASSERT_EQUAL(0, res);
 
-        size_t size = file[0].size();
+        size = file[0].size();
         res = file[0].seek(0, SEEK_CUR);
         TEST_ASSERT_EQUAL(size, res);
         res = file[0].close();
@@ -403,6 +405,7 @@ void test_simple_file_seek_and_write()
     TEST_ASSERT_EQUAL(0, res);
 
     {
+        size_t size;
         res = fs.mount(&bd);
         TEST_ASSERT_EQUAL(0, res);
         res = file[0].open(&fs, "hello/kitty42", O_RDWR);
@@ -450,7 +453,7 @@ void test_simple_file_seek_and_write()
         res = memcmp(buffer, "kittycatcat", size);
         TEST_ASSERT_EQUAL(0, res);
 
-        size_t size = file[0].size();
+        size = file[0].size();
         res = file[0].seek(0, SEEK_CUR);
         TEST_ASSERT_EQUAL(size, res);
         res = file[0].close();
@@ -469,6 +472,7 @@ void test_large_file_seek_and_write()
     TEST_ASSERT_EQUAL(0, res);
 
     {
+        size_t size;
         res = fs.mount(&bd);
         TEST_ASSERT_EQUAL(0, res);
         res = file[0].open(&fs, "hello/kitty42", O_RDWR);
@@ -518,7 +522,7 @@ void test_large_file_seek_and_write()
         res = memcmp(buffer, "kittycatcat", size);
         TEST_ASSERT_EQUAL(0, res);
 
-        size_t size = file[0].size();
+        size = file[0].size();
         res = file[0].seek(0, SEEK_CUR);
         TEST_ASSERT_EQUAL(size, res);
         res = file[0].close();
@@ -537,6 +541,7 @@ void test_boundary_seek_and_write()
     TEST_ASSERT_EQUAL(0, res);
 
     {
+        size_t size;
         res = fs.mount(&bd);
         TEST_ASSERT_EQUAL(0, res);
         res = file[0].open(&fs, "hello/kitty42", O_RDWR);
@@ -583,6 +588,7 @@ void test_out_of_bounds_seek()
     TEST_ASSERT_EQUAL(0, res);
 
     {
+        size_t size;
         res = fs.mount(&bd);
         TEST_ASSERT_EQUAL(0, res);
         res = file[0].open(&fs, "hello/kitty42", O_RDWR);