Update rules.csv to recategorize Pointers2 and Expressions packages

Author: Nikita Kraiouchkine

rules.csv

@@ -483,7 +483,7 @@ c,CERT-C,ARR30-C,Yes,Rule,,,Do not form or use out-of-bounds pointers or array s
 c,CERT-C,ARR32-C,Yes,Rule,,,Ensure size arguments for variable length arrays are in a valid range,,InvalidMemory,Medium,
 c,CERT-C,ARR36-C,Yes,Rule,,,Do not subtract or compare two pointers that do not refer to the same array,,Memory,Medium,
 c,CERT-C,ARR37-C,Yes,Rule,,,Do not add or subtract an integer to a pointer to a non-array object,,InvalidMemory,Medium,
-c,CERT-C,ARR38-C,Yes,Rule,,,Guarantee that library functions do not form invalid pointers,,Pointers2,Very Hard,
+c,CERT-C,ARR38-C,Yes,Rule,,,Guarantee that library functions do not form invalid pointers,,OutOfBounds,Very Hard,
 c,CERT-C,ARR39-C,Yes,Rule,,,Do not add or subtract a scaled integer to a pointer,,Pointers2,Medium,
 c,CERT-C,CON30-C,Yes,Rule,,,Clean up thread-specific storage,,Concurrency3,Very Hard,
 c,CERT-C,CON31-C,Yes,Rule,,,Do not destroy a mutex while it is locked,CON50-CPP,Concurrency3,Very Hard,
@@ -760,7 +760,7 @@ c,MISRA-C-2012,RULE-21-14,Yes,Required,,,The Standard Library function memcmp sh
 c,MISRA-C-2012,RULE-21-15,Yes,Required,,,"The pointer arguments to the Standard Library functions memcpy, memmove and memcmp shall be pointers to qualified or unqualified versions of compatible types",,Types,Medium,
 c,MISRA-C-2012,RULE-21-16,Yes,Required,,,"The pointer arguments to the Standard Library function memcmp shall point to either a pointer type, an essentially signed type, an essentially unsigned type, an essentially Boolean type or an essentially enum type",,Types,Medium,
 c,MISRA-C-2012,RULE-21-17,Yes,Mandatory,,,Use of the string handling functions from <string.h> shall not result in accesses beyond the bounds of the objects referenced by their pointer parameters,,Memory,Hard,
-c,MISRA-C-2012,RULE-21-18,Yes,Mandatory,,,The size_t argument passed to any function in <string.h> shall have an appropriate value,,Expressions,Medium,
+c,MISRA-C-2012,RULE-21-18,Yes,Mandatory,,,The size_t argument passed to any function in <string.h> shall have an appropriate value,,OutOfBounds,Hard,
 c,MISRA-C-2012,RULE-21-19,Yes,Mandatory,,,"The pointers returned by the Standard Library functions localeconv, getenv, setlocale or, strerror shall only be used as if they have pointer to const-qualified type",ENV30-C,Contracts,Easy,
 c,MISRA-C-2012,RULE-21-20,Yes,Mandatory,,,"The pointer returned by the Standard Library functions asctime, ctime, gmtime, localtime, localeconv, getenv, setlocale or strerror shall not be used following a subsequent call to the same function","ENV31-C, ENV34-C",Contracts,Easy,
 c,MISRA-C-2012,RULE-21-21,Yes,Required,,,The Standard Library function system of <stdlib.h> shall not be used,ENV33-C,Banned,Import,