group: Add missing declarations to internal header

Author: real-or-random

src/group.h

@@ -21,6 +21,7 @@ typedef struct {
 
 #define SECP256K1_GE_CONST(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p) {SECP256K1_FE_CONST((a),(b),(c),(d),(e),(f),(g),(h)), SECP256K1_FE_CONST((i),(j),(k),(l),(m),(n),(o),(p)), 0}
 #define SECP256K1_GE_CONST_INFINITY {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), 1}
+static const secp256k1_ge secp256k1_ge_const_g;
 
 /** A group element of the secp256k1 curve, in jacobian coordinates.
  *  Note: For exhastive test mode, secp256k1 is replaced by a small subgroup of a different curve.
@@ -87,6 +88,12 @@ static void secp256k1_ge_set_all_gej(secp256k1_ge *r, const secp256k1_gej *a, si
 /** Set group elements r[0:len] (affine) equal to group elements a[0:len] (jacobian). */
 static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a, size_t len);
 
+/** Set a group element (affine) equal to the group element with jacobian coordinates (a.x, a.y, 1/zi). */
+static void secp256k1_ge_set_gej_zinv(secp256k1_ge *r, const secp256k1_gej *a, const secp256k1_fe *zi);
+
+/** Set a group element (affine) equal to the group element with jacobian coordinates (a.x, a.y, 1/zi). */
+static void secp256k1_ge_set_ge_zinv(secp256k1_ge *r, const secp256k1_ge *a, const secp256k1_fe *zi);
+
 /** Bring a batch of inputs to the same global z "denominator", based on ratios between
  *  (omitted) z coordinates of adjacent elements.
  *

src/group_impl.h

@@ -95,7 +95,6 @@ static void secp256k1_gej_verify(const secp256k1_gej *a) {
     (void)a;
 }
 
-/* Set r to the affine coordinates of Jacobian point (a.x, a.y, 1/zi). */
 static void secp256k1_ge_set_gej_zinv(secp256k1_ge *r, const secp256k1_gej *a, const secp256k1_fe *zi) {
     secp256k1_fe zi2;
     secp256k1_fe zi3;
@@ -112,7 +111,6 @@ static void secp256k1_ge_set_gej_zinv(secp256k1_ge *r, const secp256k1_gej *a, c
     SECP256K1_GE_VERIFY(r);
 }
 
-/* Set r to the affine coordinates of Jacobian point (a.x, a.y, 1/zi). */
 static void secp256k1_ge_set_ge_zinv(secp256k1_ge *r, const secp256k1_ge *a, const secp256k1_fe *zi) {
     secp256k1_fe zi2;
     secp256k1_fe zi3;